253511379 has 12 divisors (see below), whose sum is σ = 399472632. Its totient is φ = 153643200.

The previous prime is 253511371. The next prime is 253511389. The reversal of 253511379 is 973115352.

253511379 is a `hidden beast` number, since 2 + 535 + 113 + 7 + 9 = 666.

It is not a de Polignac number, because 253511379 - 2³ = 253511371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253511371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1280262 + ... + 1280459.

It is an arithmetic number, because the mean of its divisors is an integer number (33289386).

Almost surely, 2^253511379 is an apocalyptic number.

253511379 is a deficient number, since it is larger than the sum of its proper divisors (145961253).

253511379 is a wasteful number, since it uses less digits than its factorization.

253511379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560738 (or 2560735 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 253511379 is about 15922.0406669497. The cubic root of 253511379 is about 632.8961967504.

The spelling of 253511379 in words is "two hundred fifty-three million, five hundred eleven thousand, three hundred seventy-nine".