253436512 has 24 divisors (see below), whose sum is σ = 570232656. Its totient is φ = 108615552.

The previous prime is 253436507. The next prime is 253436543. The reversal of 253436512 is 215634352.

It is a happy number.

It is a super-2 number, since 2×253436512² = 128460131229452288, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565483 + ... + 565930.

It is an arithmetic number, because the mean of its divisors is an integer number (23759694).

Almost surely, 2^253436512 is an apocalyptic number.

It is an amenable number.

253436512 is an abundant number, since it is smaller than the sum of its proper divisors (316796144).

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

253436512 is a wasteful number, since it uses less digits than its factorization.

253436512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131430 (or 1131422 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 253436512 is about 15919.6894442071. The cubic root of 253436512 is about 632.8338882985.

The spelling of 253436512 in words is "two hundred fifty-three million, four hundred thirty-six thousand, five hundred twelve".