56856976 has 80 divisors (see below), whose sum is σ = 131563008. Its totient is φ = 23500800.

The previous prime is 56856973. The next prime is 56856983. The reversal of 56856976 is 67965865.

It is not an unprimeable number, because it can be changed into a prime (56856973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92446 + ... + 93058.

Almost surely, 2^56856976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56856976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65781504).

56856976 is an abundant number, since it is smaller than the sum of its proper divisors (74706032).

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

56856976 is a wasteful number, since it uses less digits than its factorization.

56856976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680 (or 674 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 52.

The square root of 56856976 is about 7540.3564902463. The cubic root of 56856976 is about 384.5279557912.

Subtracting 56856976 from its reverse (67965865), we obtain a square (11108889 = 3333²).

The spelling of 56856976 in words is "fifty-six million, eight hundred fifty-six thousand, nine hundred seventy-six".