56213976 has 96 divisors (see below), whose sum is σ = 176102640. Its totient is φ = 14821632.

The previous prime is 56213957. The next prime is 56213981. The reversal of 56213976 is 67931265.

56213976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×56213976² = 6320022195457152, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 13450 + ... + 17126.

Almost surely, 2^56213976 is an apocalyptic number.

56213976 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56213976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88051320).

56213976 is an abundant number, since it is smaller than the sum of its proper divisors (119888664).

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

56213976 is a wasteful number, since it uses less digits than its factorization.

56213976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3713 (or 3702 counting only the distinct ones).

The product of its digits is 68040, while the sum is 39.

The square root of 56213976 is about 7497.5980153647. The cubic root of 56213976 is about 383.0729045636.

The spelling of 56213976 in words is "fifty-six million, two hundred thirteen thousand, nine hundred seventy-six".