56155225031988 has 12 divisors (see below), whose sum is σ = 131028858408000. Its totient is φ = 18718408343992.

The previous prime is 56155225031977. The next prime is 56155225031993. The reversal of 56155225031988 is 88913052255165.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2339801042988 + ... + 2339801043011.

It is an arithmetic number, because the mean of its divisors is an integer number (10919071534000).

Almost surely, 2^{56155225031988} is an apocalyptic number.

It is an amenable number.

56155225031988 is an abundant number, since it is smaller than the sum of its proper divisors (74873633376012).

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

56155225031988 is a wasteful number, since it uses less digits than its factorization.

56155225031988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4679602086006 (or 4679602086004 counting only the distinct ones).

The product of its (nonzero) digits is 25920000, while the sum is 60.

The spelling of 56155225031988 in words is "fifty-six trillion, one hundred fifty-five billion, two hundred twenty-five million, thirty-one thousand, nine hundred eighty-eight".