253631053512 has 96 divisors (see below), whose sum is σ = 727615418400. Its totient is φ = 79538683392.

The previous prime is 253631053457. The next prime is 253631053531. The reversal of 253631053512 is 215350136352.

253631053512 is a `hidden beast` number, since 2 + 5 + 3 + 631 + 0 + 5 + 3 + 5 + 12 = 666.

It is a super-2 number, since 2×253631053512² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3116523 + ... + 3196869.

It is an arithmetic number, because the mean of its divisors is an integer number (7579327275).

Almost surely, 2^253631053512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253631053512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363807709200).

253631053512 is an abundant number, since it is smaller than the sum of its proper divisors (473984364888).

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

253631053512 is a wasteful number, since it uses less digits than its factorization.

253631053512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82955 (or 82948 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

Adding to 253631053512 its reverse (215350136352), we get a palindrome (468981189864).

The spelling of 253631053512 in words is "two hundred fifty-three billion, six hundred thirty-one million, fifty-three thousand, five hundred twelve".