53033239987 has 32 divisors (see below), whose sum is σ = 67450363904. Its totient is φ = 40562726400.

The previous prime is 53033239951. The next prime is 53033239993. The reversal of 53033239987 is 78993233035.

It is not a de Polignac number, because 53033239987 - 2²⁷ = 52899022259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53033239927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2718187 + ... + 2737627.

It is an arithmetic number, because the mean of its divisors is an integer number (2107823872).

Almost surely, 2^53033239987 is an apocalyptic number.

53033239987 is a deficient number, since it is larger than the sum of its proper divisors (14417123917).

53033239987 is a wasteful number, since it uses less digits than its factorization.

53033239987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20459.

The product of its (nonzero) digits is 3674160, while the sum is 52.

The spelling of 53033239987 in words is "fifty-three billion, thirty-three million, two hundred thirty-nine thousand, nine hundred eighty-seven".