56155155700 has 72 divisors (see below), whose sum is σ = 141625310400. Its totient is φ = 18926856960.

The previous prime is 56155155689. The next prime is 56155155713. The reversal of 56155155700 is 755155165.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 638545 + ... + 721144.

It is an arithmetic number, because the mean of its divisors is an integer number (1967018200).

Almost surely, 2^56155155700 is an apocalyptic number.

56155155700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56155155700 is an abundant number, since it is smaller than the sum of its proper divisors (85470154700).

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

56155155700 is a wasteful number, since it uses less digits than its factorization.

56155155700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359769 (or 1359762 counting only the distinct ones).

The product of its (nonzero) digits is 131250, while the sum is 40.

The spelling of 56155155700 in words is "fifty-six billion, one hundred fifty-five million, one hundred fifty-five thousand, seven hundred".