56577172657650 has 48 divisors (see below), whose sum is σ = 147696198103200. Its totient is φ = 14293180460160.

The previous prime is 56577172657619. The next prime is 56577172657673. The reversal of 56577172657650 is 5675627177565.

It is a happy 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, 9925816915 + ... + 9925822614.

It is an arithmetic number, because the mean of its divisors is an integer number (3077004127150).

Almost surely, 2^{56577172657650} is an apocalyptic number.

56577172657650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56577172657650 is an abundant number, since it is smaller than the sum of its proper divisors (91119025445550).

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

56577172657650 is a wasteful number, since it uses less digits than its factorization.

56577172657650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19851639563 (or 19851639558 counting only the distinct ones).

The product of its (nonzero) digits is 648270000, while the sum is 69.

The spelling of 56577172657650 in words is "fifty-six trillion, five hundred seventy-seven billion, one hundred seventy-two million, six hundred fifty-seven thousand, six hundred fifty".