253131229989 has 24 divisors (see below), whose sum is σ = 399264282144. Its totient is φ = 153262548000.

The previous prime is 253131229943. The next prime is 253131229993. The reversal of 253131229989 is 989922131352.

253131229989 is a `hidden beast` number, since 2 + 5 + 31 + 312 + 299 + 8 + 9 = 666.

It is not a de Polignac number, because 253131229989 - 2⁸ = 253131229733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253131229289) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1151067 + ... + 1353224.

It is an arithmetic number, because the mean of its divisors is an integer number (16636011756).

Almost surely, 2^253131229989 is an apocalyptic number.

It is an amenable number.

253131229989 is a deficient number, since it is larger than the sum of its proper divisors (146133052155).

253131229989 is a wasteful number, since it uses less digits than its factorization.

253131229989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505329 (or 2505326 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The spelling of 253131229989 in words is "two hundred fifty-three billion, one hundred thirty-one million, two hundred twenty-nine thousand, nine hundred eighty-nine".