253256444 has 24 divisors (see below), whose sum is σ = 507211488. Its totient is φ = 108388800.

The previous prime is 253256441. The next prime is 253256501. The reversal of 253256444 is 444652352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253256441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15794 + ... + 27494.

It is an arithmetic number, because the mean of its divisors is an integer number (21133812).

Almost surely, 2^253256444 is an apocalyptic number.

It is an amenable number.

253256444 is an abundant number, since it is smaller than the sum of its proper divisors (253955044).

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

253256444 is a wasteful number, since it uses less digits than its factorization.

253256444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12485 (or 12483 counting only the distinct ones).

The product of its digits is 115200, while the sum is 35.

The square root of 253256444 is about 15914.0329269485. The cubic root of 253256444 is about 632.6839754985.

The spelling of 253256444 in words is "two hundred fifty-three million, two hundred fifty-six thousand, four hundred forty-four".