56847285 has 32 divisors (see below), whose sum is σ = 110252160. Its totient is φ = 27561600.

The previous prime is 56847277. The next prime is 56847313. The reversal of 56847285 is 58274865.

56847285 is a `hidden beast` number, since 568 + 4 + 7 + 2 + 85 = 666.

It is not a de Polignac number, because 56847285 - 2³ = 56847277 is a prime.

It is a super-2 number, since 2×56847285² = 6463227623742450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56847285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17656 + ... + 20625.

It is an arithmetic number, because the mean of its divisors is an integer number (3445380).

Almost surely, 2^56847285 is an apocalyptic number.

56847285 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56847285 is a deficient number, since it is larger than the sum of its proper divisors (53404875).

56847285 is a wasteful number, since it uses less digits than its factorization.

56847285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38306 (or 38300 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 56847285 is about 7539.7138539868. The cubic root of 56847285 is about 384.5061075654.

The spelling of 56847285 in words is "fifty-six million, eight hundred forty-seven thousand, two hundred eighty-five".