53188986 has 16 divisors (see below), whose sum is σ = 106765344. Its totient is φ = 17665104.

The previous prime is 53188957. The next prime is 53189009. The reversal of 53188986 is 68988135.

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, 14340 + ... + 17663.

It is an arithmetic number, because the mean of its divisors is an integer number (6672834).

Almost surely, 2^53188986 is an apocalyptic number.

53188986 is an abundant number, since it is smaller than the sum of its proper divisors (53576358).

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

53188986 is a wasteful number, since it uses less digits than its factorization.

53188986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32285.

The product of its digits is 414720, while the sum is 48.

The square root of 53188986 is about 7293.0779510437. The cubic root of 53188986 is about 376.0745146193.

The spelling of 53188986 in words is "fifty-three million, one hundred eighty-eight thousand, nine hundred eighty-six".