51566488 has 8 divisors (see below), whose sum is σ = 96687180. Its totient is φ = 25783240.

The previous prime is 51566477. The next prime is 51566507. The reversal of 51566488 is 88466515.

51566488 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 (8).

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 as a sum of consecutive naturals, namely, 3222898 + ... + 3222913.

Almost surely, 2^51566488 is an apocalyptic number.

It is an amenable number.

51566488 is a deficient number, since it is larger than the sum of its proper divisors (45120692).

51566488 is a wasteful number, since it uses less digits than its factorization.

51566488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6445817 (or 6445813 counting only the distinct ones).

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

The square root of 51566488 is about 7180.9809914802. The cubic root of 51566488 is about 372.2109837188.

The spelling of 51566488 in words is "fifty-one million, five hundred sixty-six thousand, four hundred eighty-eight".