56489976 has 24 divisors (see below), whose sum is σ = 152993880. Its totient is φ = 18829968.

The previous prime is 56489957. The next prime is 56489989. The reversal of 56489976 is 67998465.

56489976 is a `hidden beast` number, since 564 + 8 + 9 + 9 + 76 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×56489976² = 6382234776961152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 392220 + ... + 392363.

It is an arithmetic number, because the mean of its divisors is an integer number (6374745).

Almost surely, 2^56489976 is an apocalyptic number.

It is an amenable number.

56489976 is an abundant number, since it is smaller than the sum of its proper divisors (96503904).

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

56489976 is a wasteful number, since it uses less digits than its factorization.

56489976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784595 (or 784588 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 56489976 is about 7515.9813730477. The cubic root of 56489976 is about 383.6988198287.

The spelling of 56489976 in words is "fifty-six million, four hundred eighty-nine thousand, nine hundred seventy-six".