53239251986 has 16 divisors (see below), whose sum is σ = 84071403360. Its totient is φ = 25215765120.

The previous prime is 53239251973. The next prime is 53239252049. The reversal of 53239251986 is 68915293235.

It is a Curzon number.

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, 286850 + ... + 434466.

It is an arithmetic number, because the mean of its divisors is an integer number (5254462710).

Almost surely, 2^53239251986 is an apocalyptic number.

53239251986 is a deficient number, since it is larger than the sum of its proper divisors (30832151374).

53239251986 is a wasteful number, since it uses less digits than its factorization.

53239251986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157129.

The product of its digits is 3499200, while the sum is 53.

The spelling of 53239251986 in words is "fifty-three billion, two hundred thirty-nine million, two hundred fifty-one thousand, nine hundred eighty-six".