56387286 has 16 divisors (see below), whose sum is σ = 125305200. Its totient is φ = 18795744.

The previous prime is 56387257. The next prime is 56387291. The reversal of 56387286 is 68278365.

56387286 is a `hidden beast` number, since 5 + 638 + 7 + 2 + 8 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522051 + ... + 522158.

It is an arithmetic number, because the mean of its divisors is an integer number (7831575).

Almost surely, 2^56387286 is an apocalyptic number.

56387286 is an abundant number, since it is smaller than the sum of its proper divisors (68917914).

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

56387286 is a wasteful number, since it uses less digits than its factorization.

56387286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044220 (or 1044214 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 56387286 is about 7509.1468223760. The cubic root of 56387286 is about 383.4661771882.

The spelling of 56387286 in words is "fifty-six million, three hundred eighty-seven thousand, two hundred eighty-six".