56587812 has 24 divisors (see below), whose sum is σ = 134848896. Its totient is φ = 18461088.

The previous prime is 56587799. The next prime is 56587819. The reversal of 56587812 is 21878565.

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

It is not an unprimeable number, because it can be changed into a prime (56587819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49603 + ... + 50730.

It is an arithmetic number, because the mean of its divisors is an integer number (5618704).

Almost surely, 2^56587812 is an apocalyptic number.

It is an amenable number.

56587812 is an abundant number, since it is smaller than the sum of its proper divisors (78261084).

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

56587812 is a wasteful number, since it uses less digits than its factorization.

56587812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100387 (or 100385 counting only the distinct ones).

The product of its digits is 134400, while the sum is 42.

The square root of 56587812 is about 7522.4870887227. The cubic root of 56587812 is about 383.9202036883.

The spelling of 56587812 in words is "fifty-six million, five hundred eighty-seven thousand, eight hundred twelve".