56400860 has 12 divisors (see below), whose sum is σ = 118441848. Its totient is φ = 22560336.

The previous prime is 56400859. The next prime is 56400863. The reversal of 56400860 is 6800465.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56400863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1410002 + ... + 1410041.

It is an arithmetic number, because the mean of its divisors is an integer number (9870154).

Almost surely, 2^56400860 is an apocalyptic number.

It is an amenable number.

56400860 is an abundant number, since it is smaller than the sum of its proper divisors (62040988).

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

56400860 is a wasteful number, since it uses less digits than its factorization.

56400860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2820052 (or 2820050 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 56400860 is about 7510.0505990306. The cubic root of 56400860 is about 383.4969450712.

The spelling of 56400860 in words is "fifty-six million, four hundred thousand, eight hundred sixty".