56978012 has 36 divisors (see below), whose sum is σ = 123406416. Its totient is φ = 22538880.

The previous prime is 56978003. The next prime is 56978029. The reversal of 56978012 is 21087965.

56978012 = 314² + 315² + ... + 586².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1289 + ... + 10752.

It is an arithmetic number, because the mean of its divisors is an integer number (3427956).

Almost surely, 2^56978012 is an apocalyptic number.

56978012 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

56978012 is an abundant number, since it is smaller than the sum of its proper divisors (66428404).

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

56978012 is a wasteful number, since it uses less digits than its factorization.

56978012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12078 (or 12063 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 56978012 is about 7548.3781039373. The cubic root of 56978012 is about 384.8006208902.

The spelling of 56978012 in words is "fifty-six million, nine hundred seventy-eight thousand, twelve".