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55750291200 = 283452414361
BaseRepresentation
bin110011111010111110…
…011110111100000000
312022220100000020020000
4303322332132330000
51403134033304300
641340014120000
74012354441062
oct637276367400
9168810006200
1055750291200
1121709649a2a
12a97a7b0000
1353461987b6
1429ac2db732
1516b4604c00
hexcfaf9ef00

55750291200 has 1080 divisors, whose sum is σ = 219614808336. Its totient is φ = 13934592000.

The previous prime is 55750291133. The next prime is 55750291229. The reversal of 55750291200 is 219205755.

It is a tau number, because it is divible by the number of its divisors (1080).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 913939170 + ... + 913939230.

Almost surely, 255750291200 is an apocalyptic number.

55750291200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55750291200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109807404168).

55750291200 is an abundant number, since it is smaller than the sum of its proper divisors (163864517136).

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

55750291200 is a wasteful number, since it uses less digits than its factorization.

55750291200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

Adding to 55750291200 its reverse (219205755), we get a palindrome (55969496955).

The spelling of 55750291200 in words is "fifty-five billion, seven hundred fifty million, two hundred ninety-one thousand, two hundred".