53979872 has 12 divisors (see below), whose sum is σ = 106272936. Its totient is φ = 26989920.

The previous prime is 53979853. The next prime is 53979881. The reversal of 53979872 is 27897935.

It is a happy number.

It is a super-2 number, since 2×53979872² = 5827653162272768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53979872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 843404 + ... + 843467.

It is an arithmetic number, because the mean of its divisors is an integer number (8856078).

Almost surely, 2^53979872 is an apocalyptic number.

It is an amenable number.

53979872 is a deficient number, since it is larger than the sum of its proper divisors (52293064).

53979872 is a wasteful number, since it uses less digits than its factorization.

53979872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686881 (or 1686873 counting only the distinct ones).

The product of its digits is 952560, while the sum is 50.

The square root of 53979872 is about 7347.0995637734. The cubic root of 53979872 is about 377.9293467418.

The spelling of 53979872 in words is "fifty-three million, nine hundred seventy-nine thousand, eight hundred seventy-two".