56689416 has 64 divisors (see below), whose sum is σ = 179971200. Its totient is φ = 16196544.

The previous prime is 56689397. The next prime is 56689417. The reversal of 56689416 is 61498665.

56689416 is a `hidden beast` number, since 566 + 89 + 4 + 1 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (56689417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17235 + ... + 20258.

It is an arithmetic number, because the mean of its divisors is an integer number (2812050).

Almost surely, 2^56689416 is an apocalyptic number.

56689416 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

56689416 is an abundant number, since it is smaller than the sum of its proper divisors (123281784).

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

56689416 is a wasteful number, since it uses less digits than its factorization.

56689416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37515 (or 37505 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 56689416 is about 7529.2374115843. The cubic root of 56689416 is about 384.1498438643.

Subtracting 56689416 from its reverse (61498665), we obtain a square (4809249 = 2193²).

The spelling of 56689416 in words is "fifty-six million, six hundred eighty-nine thousand, four hundred sixteen".