56012978 has 24 divisors (see below), whose sum is σ = 101112300. Its totient is φ = 23176608.

The previous prime is 56012963. The next prime is 56012987. The reversal of 56012978 is 87921065.

56012978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 55995289 + 17689 = 7483^2 + 133^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7013 + ... + 12696.

Almost surely, 2^56012978 is an apocalyptic number.

56012978 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

56012978 is a deficient number, since it is larger than the sum of its proper divisors (45099322).

56012978 is a wasteful number, since it uses less digits than its factorization.

56012978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19754 (or 19747 counting only the distinct ones).

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

The square root of 56012978 is about 7484.1818524138. The cubic root of 56012978 is about 382.6157890584.

The spelling of 56012978 in words is "fifty-six million, twelve thousand, nine hundred seventy-eight".