56685841 has 3 divisors (see below), whose sum is σ = 56693371. Its totient is φ = 56678312.

The previous prime is 56685833. The next prime is 56685859. The reversal of 56685841 is 14858665.

The square root of 56685841 is 7529.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 18740241 + 37945600 = 4329^2 + 6160^2 .

It is not a de Polignac number, because 56685841 - 2³ = 56685833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56682841) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3765 + ... + 11293.

Almost surely, 2^56685841 is an apocalyptic number.

56685841 is the 7529-th square number.

56685841 is the 3765-th centered octagonal number.

It is an amenable number.

56685841 is a deficient number, since it is larger than the sum of its proper divisors (7530).

56685841 is an frugal number, since it uses more digits than its factorization.

56685841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15058 (or 7529 counting only the distinct ones).

The product of its digits is 230400, while the sum is 43.

The cubic root of 56685841 is about 384.1417684912.

Multiplying 56685841 by its product of digits (230400), we get a square (13060417766400 = 3613920²).

The spelling of 56685841 in words is "fifty-six million, six hundred eighty-five thousand, eight hundred forty-one".