51566484 has 12 divisors (see below), whose sum is σ = 120321824. Its totient is φ = 17188824.

The previous prime is 51566477. The next prime is 51566507. The reversal of 51566484 is 48466515.

It is a happy number.

51566484 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 congruent number.

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, 2148592 + ... + 2148615.

Almost surely, 2^51566484 is an apocalyptic number.

It is an amenable number.

51566484 is an abundant number, since it is smaller than the sum of its proper divisors (68755340).

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

51566484 is a wasteful number, since it uses less digits than its factorization.

51566484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4297214 (or 4297212 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 51566484 is about 7180.9807129667. The cubic root of 51566484 is about 372.2109740947.

The spelling of 51566484 in words is "fifty-one million, five hundred sixty-six thousand, four hundred eighty-four".