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55252043132 = 2211133110130851
BaseRepresentation
bin110011011101010001…
…110100010101111100
312021121121110121100212
4303131101310111330
51401124010340012
641214335011552
73664124421566
oct633521642574
9167547417325
1055252043132
1121483379870
12a85b969bb8
135296ba7c60
142962080336
1516859d5b22
hexcdd47457c

55252043132 has 96 divisors (see below), whose sum is σ = 118424291328. Its totient is φ = 22212000000.

The previous prime is 55252043083. The next prime is 55252043137. The reversal of 55252043132 is 23134025255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55252043137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1775507 + ... + 1806357.

It is an arithmetic number, because the mean of its divisors is an integer number (1233586368).

Almost surely, 255252043132 is an apocalyptic number.

55252043132 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55252043132 is an abundant number, since it is smaller than the sum of its proper divisors (63172248196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55252043132 is a wasteful number, since it uses less digits than its factorization.

55252043132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31011 (or 31009 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 55252043132 its reverse (23134025255), we get a palindrome (78386068387).

The spelling of 55252043132 in words is "fifty-five billion, two hundred fifty-two million, forty-three thousand, one hundred thirty-two".

Divisors: 1 2 4 11 13 22 26 31 44 52 62 101 124 143 202 286 341 403 404 572 682 806 1111 1313 1364 1612 2222 2626 3131 4433 4444 5252 6262 8866 12524 14443 17732 28886 30851 34441 40703 57772 61702 68882 81406 123404 137764 162812 339361 401063 447733 678722 802126 895466 956381 1357444 1604252 1790932 1912762 3115951 3825524 4411693 6231902 8823386 10520191 12432953 12463804 17646772 21040382 24865906 34275461 40507363 42080764 49731812 68550922 81014726 96594481 136762483 137101844 162029452 193188962 273524966 386377924 445580993 547049932 891161986 1062539291 1255728253 1782323972 2125078582 2511456506 4250157164 5022913012 13813010783 27626021566 55252043132