53187984 has 30 divisors (see below), whose sum is σ = 148852886. Its totient is φ = 17729280.

The previous prime is 53187941. The next prime is 53188027. The reversal of 53187984 is 48978135.

It is an interprime number because it is at equal distance from previous prime (53187941) and next prime (53188027).

It can be written as a sum of positive squares in only one way, i.e., 28387584 + 24800400 = 5328^2 + 4980^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 184537 + ... + 184824.

Almost surely, 2^53187984 is an apocalyptic number.

It is an amenable number.

53187984 is an abundant number, since it is smaller than the sum of its proper divisors (95664902).

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

53187984 is a wasteful number, since it uses less digits than its factorization.

53187984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369375 (or 369366 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 53187984 is about 7293.0092554446. The cubic root of 53187984 is about 376.0721530462.

The spelling of 53187984 in words is "fifty-three million, one hundred eighty-seven thousand, nine hundred eighty-four".