51684488 has 32 divisors (see below), whose sum is σ = 102967200. Its totient is φ = 24237312.

The previous prime is 51684461. The next prime is 51684527. The reversal of 51684488 is 88448615.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56531 + ... + 57437.

It is an arithmetic number, because the mean of its divisors is an integer number (3217725).

Almost surely, 2^51684488 is an apocalyptic number.

It is an amenable number.

51684488 is a deficient number, since it is larger than the sum of its proper divisors (51282712).

51684488 is a wasteful number, since it uses less digits than its factorization.

51684488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349 (or 1345 counting only the distinct ones).

The product of its digits is 245760, while the sum is 44.

The square root of 51684488 is about 7189.1924442179. The cubic root of 51684488 is about 372.4946785421.

The spelling of 51684488 in words is "fifty-one million, six hundred eighty-four thousand, four hundred eighty-eight".