51992872 has 16 divisors (see below), whose sum is σ = 97725600. Its totient is φ = 25932720.

The previous prime is 51992869. The next prime is 51992933. The reversal of 51992872 is 27829915.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4404 + ... + 11107.

It is an arithmetic number, because the mean of its divisors is an integer number (6107850).

Almost surely, 2^51992872 is an apocalyptic number.

It is an amenable number.

51992872 is a deficient number, since it is larger than the sum of its proper divisors (45732728).

51992872 is a wasteful number, since it uses less digits than its factorization.

51992872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15936 (or 15932 counting only the distinct ones).

The product of its digits is 90720, while the sum is 43.

The square root of 51992872 is about 7210.6082961148. The cubic root of 51992872 is about 373.2340601976.

The spelling of 51992872 in words is "fifty-one million, nine hundred ninety-two thousand, eight hundred seventy-two".