56978756 has 6 divisors (see below), whose sum is σ = 99712830. Its totient is φ = 28489376.

The previous prime is 56978749. The next prime is 56978767. The reversal of 56978756 is 65787965.

It is a happy number.

56978756 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 only one way, i.e., 46022656 + 10956100 = 6784^2 + 3310^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56978698 and 56978707.

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 as a sum of consecutive naturals, namely, 7122341 + ... + 7122348.

It is an arithmetic number, because the mean of its divisors is an integer number (16618805).

Almost surely, 2^56978756 is an apocalyptic number.

It is an amenable number.

56978756 is a deficient number, since it is larger than the sum of its proper divisors (42734074).

56978756 is a wasteful number, since it uses less digits than its factorization.

56978756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14244693 (or 14244691 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 53.

The square root of 56978756 is about 7548.4273858864. The cubic root of 56978756 is about 384.8022957492.

The spelling of 56978756 in words is "fifty-six million, nine hundred seventy-eight thousand, seven hundred fifty-six".