51474964 has 12 divisors (see below), whose sum is σ = 91998144. Its totient is φ = 25189784.

The previous prime is 51474947. The next prime is 51474977. The reversal of 51474964 is 46947415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136714 + ... + 137089.

It is an arithmetic number, because the mean of its divisors is an integer number (7666512).

Almost surely, 2^51474964 is an apocalyptic number.

It is an amenable number.

51474964 is a deficient number, since it is larger than the sum of its proper divisors (40523180).

51474964 is a wasteful number, since it uses less digits than its factorization.

51474964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273854 (or 273852 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 51474964 is about 7174.6054943809. The cubic root of 51474964 is about 371.9906441552.

The spelling of 51474964 in words is "fifty-one million, four hundred seventy-four thousand, nine hundred sixty-four".