53991184 has 40 divisors (see below), whose sum is σ = 119289240. Its totient is φ = 23451648.

The previous prime is 53991173. The next prime is 53991209. The reversal of 53991184 is 48119935.

It can be written as a sum of positive squares in 4 ways, for example, as 5382400 + 48608784 = 2320^2 + 6972^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4099 + ... + 11170.

It is an arithmetic number, because the mean of its divisors is an integer number (2982231).

Almost surely, 2^53991184 is an apocalyptic number.

It is an amenable number.

53991184 is an abundant number, since it is smaller than the sum of its proper divisors (65298056).

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

53991184 is a wasteful number, since it uses less digits than its factorization.

53991184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15307 (or 15301 counting only the distinct ones).

The product of its digits is 38880, while the sum is 40.

The square root of 53991184 is about 7347.8693510432. The cubic root of 53991184 is about 377.9557444712.

The spelling of 53991184 in words is "fifty-three million, nine hundred ninety-one thousand, one hundred eighty-four".