53931972 has 12 divisors (see below), whose sum is σ = 125841296. Its totient is φ = 17977320.

The previous prime is 53931907. The next prime is 53932009. The reversal of 53931972 is 27913935.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 53931972.

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, 2247154 + ... + 2247177.

Almost surely, 2^53931972 is an apocalyptic number.

It is an amenable number.

53931972 is an abundant number, since it is smaller than the sum of its proper divisors (71909324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53931972 is a wasteful number, since it uses less digits than its factorization.

53931972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4494338 (or 4494336 counting only the distinct ones).

The product of its digits is 51030, while the sum is 39.

The square root of 53931972 is about 7343.8390505239. The cubic root of 53931972 is about 377.8175262162.

The spelling of 53931972 in words is "fifty-three million, nine hundred thirty-one thousand, nine hundred seventy-two".