56939561280 has 224 divisors, whose sum is σ = 229566094080. Its totient is φ = 13014743040.

The previous prime is 56939561251. The next prime is 56939561309. The reversal of 56939561280 is 8216593965.

It is a happy number.

56939561280 is a `hidden beast` number, since 56 + 9 + 3 + 9 + 561 + 28 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (56939561251) and next prime (56939561309).

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×56939561280² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 410251 + ... + 531210.

Almost surely, 2^56939561280 is an apocalyptic number.

It is an amenable number.

56939561280 is an abundant number, since it is smaller than the sum of its proper divisors (172626532800).

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

56939561280 is a wasteful number, since it uses less digits than its factorization.

56939561280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941494 (or 941478 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 54.

The spelling of 56939561280 in words is "fifty-six billion, nine hundred thirty-nine million, five hundred sixty-one thousand, two hundred eighty".