51838972 has 18 divisors (see below), whose sum is σ = 92124312. Its totient is φ = 25523784.

The previous prime is 51838949. The next prime is 51838981. The reversal of 51838972 is 27983815.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16513 + ... + 19399.

Almost surely, 2^51838972 is an apocalyptic number.

It is an amenable number.

51838972 is a deficient number, since it is larger than the sum of its proper divisors (40285340).

51838972 is a wasteful number, since it uses less digits than its factorization.

51838972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025 (or 2956 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

The square root of 51838972 is about 7199.9286107572. The cubic root of 51838972 is about 372.8654360107.

The spelling of 51838972 in words is "fifty-one million, eight hundred thirty-eight thousand, nine hundred seventy-two".