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55252043131 = 371949766187
BaseRepresentation
bin110011011101010001…
…110100010101111011
312021121121110121100211
4303131101310111323
51401124010340011
641214335011551
73664124421565
oct633521642573
9167547417324
1055252043131
112148337986a
12a85b969bb7
135296ba7c5c
142962080335
1516859d5b21
hexcdd47457b

55252043131 has 8 divisors (see below), whose sum is σ = 56774530800. Its totient is φ = 53731091808.

The previous prime is 55252043083. The next prime is 55252043137. The reversal of 55252043131 is 13134025255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55252043131 - 27 = 55252043003 is a prime.

It is a super-2 number, since 2×552520431312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55252043093 and 55252043102.

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 7 ways as a sum of consecutive naturals, for example, 310981 + ... + 455206.

It is an arithmetic number, because the mean of its divisors is an integer number (7096816350).

Almost surely, 255252043131 is an apocalyptic number.

55252043131 is a deficient number, since it is larger than the sum of its proper divisors (1522487669).

55252043131 is a wasteful number, since it uses less digits than its factorization.

55252043131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768173.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 55252043131 its reverse (13134025255), we get a palindrome (68386068386).

The spelling of 55252043131 in words is "fifty-five billion, two hundred fifty-two million, forty-three thousand, one hundred thirty-one".

Divisors: 1 37 1949 72113 766187 28348919 1493298463 55252043131