56520394255600 has 120 divisors (see below), whose sum is σ = 155931384574080. Its totient is φ = 19471140576000.

The previous prime is 56520394255561. The next prime is 56520394255601. The reversal of 56520394255600 is 655249302565.

It is a super-2 number, since 2×56520394255600² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56520394255601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 337957036 + ... + 338124235.

It is an arithmetic number, because the mean of its divisors is an integer number (1299428204784).

Almost surely, 2^{56520394255600} is an apocalyptic number.

56520394255600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56520394255600 is an abundant number, since it is smaller than the sum of its proper divisors (99410990318480).

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

56520394255600 is a wasteful number, since it uses less digits than its factorization.

56520394255600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676081319 (or 676081308 counting only the distinct ones).

The product of its (nonzero) digits is 9720000, while the sum is 52.

The spelling of 56520394255600 in words is "fifty-six trillion, five hundred twenty billion, three hundred ninety-four million, two hundred fifty-five thousand, six hundred".