51566412 has 12 divisors (see below), whose sum is σ = 120321656. Its totient is φ = 17188800.

The previous prime is 51566407. The next prime is 51566441. The reversal of 51566412 is 21466515.

51566412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 51566412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2148589 + ... + 2148612.

Almost surely, 2^51566412 is an apocalyptic number.

It is an amenable number.

51566412 is an abundant number, since it is smaller than the sum of its proper divisors (68755244).

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

51566412 is a wasteful number, since it uses less digits than its factorization.

51566412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4297208 (or 4297206 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 51566412 is about 7180.9756997221. The cubic root of 51566412 is about 372.2108008607.

The spelling of 51566412 in words is "fifty-one million, five hundred sixty-six thousand, four hundred twelve".