56807580 has 48 divisors (see below), whose sum is σ = 163366560. Its totient is φ = 14738688.

The previous prime is 56807567. The next prime is 56807581. The reversal of 56807580 is 8570865.

It is a happy number.

It is a super-2 number, since 2×56807580² = 6454202290912800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56807581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10575 + ... + 15014.

It is an arithmetic number, because the mean of its divisors is an integer number (3403470).

Almost surely, 2^56807580 is an apocalyptic number.

It is an amenable number.

56807580 is an abundant number, since it is smaller than the sum of its proper divisors (106558980).

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

56807580 is a wasteful number, since it uses less digits than its factorization.

56807580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25638 (or 25636 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 56807580 is about 7537.0803365760. The cubic root of 56807580 is about 384.4165672543.

The spelling of 56807580 in words is "fifty-six million, eight hundred seven thousand, five hundred eighty".