56987896 has 32 divisors (see below), whose sum is σ = 122682240. Its totient is φ = 24310368.

The previous prime is 56987869. The next prime is 56987899. The reversal of 56987896 is 69878965.

56987896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 56987896.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56987899) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10471 + ... + 14953.

It is an arithmetic number, because the mean of its divisors is an integer number (3833820).

Almost surely, 2^56987896 is an apocalyptic number.

56987896 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

56987896 is an abundant number, since it is smaller than the sum of its proper divisors (65694344).

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

56987896 is a wasteful number, since it uses less digits than its factorization.

56987896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4723 (or 4719 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 58.

The square root of 56987896 is about 7549.0327857282. The cubic root of 56987896 is about 384.8228701129.

The spelling of 56987896 in words is "fifty-six million, nine hundred eighty-seven thousand, eight hundred ninety-six".