51593972 has 12 divisors (see below), whose sum is σ = 90379716. Its totient is φ = 25771200.

The previous prime is 51593959. The next prime is 51593977. The reversal of 51593972 is 27939515.

It can be written as a sum of positive squares in 2 ways, for example, as 42328036 + 9265936 = 6506^2 + 3044^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51593977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1529 + ... + 10272.

It is an arithmetic number, because the mean of its divisors is an integer number (7531643).

Almost surely, 2^51593972 is an apocalyptic number.

It is an amenable number.

51593972 is a deficient number, since it is larger than the sum of its proper divisors (38785744).

51593972 is a wasteful number, since it uses less digits than its factorization.

51593972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12898 (or 12896 counting only the distinct ones).

The product of its digits is 85050, while the sum is 41.

The square root of 51593972 is about 7182.8944026764. The cubic root of 51593972 is about 372.2770992018.

The spelling of 51593972 in words is "fifty-one million, five hundred ninety-three thousand, nine hundred seventy-two".