55807243100 has 72 divisors (see below), whose sum is σ = 139119408288. Its totient is φ = 19034726400.

The previous prime is 55807243031. The next prime is 55807243117. The reversal of 55807243100 is 134270855.

It is a happy number.

It is a super-2 number, since 2×55807243100² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71441 + ... + 341640.

It is an arithmetic number, because the mean of its divisors is an integer number (1932214004).

Almost surely, 2^55807243100 is an apocalyptic number.

55807243100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55807243100 is an abundant number, since it is smaller than the sum of its proper divisors (83312165188).

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

55807243100 is a wasteful number, since it uses less digits than its factorization.

55807243100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413295 (or 413288 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The spelling of 55807243100 in words is "fifty-five billion, eight hundred seven million, two hundred forty-three thousand, one hundred".