253123215354 has 64 divisors (see below), whose sum is σ = 565317792000. Its totient is φ = 83952126720.

The previous prime is 253123215353. The next prime is 253123215377. The reversal of 253123215354 is 453512321352.

253123215354 is a `hidden beast` number, since 2 + 531 + 2 + 3 + 21 + 53 + 54 = 666.

It is a super-2 number, since 2×253123215354² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (253123215353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9542542 + ... + 9569030.

It is an arithmetic number, because the mean of its divisors is an integer number (8833090500).

Almost surely, 2^253123215354 is an apocalyptic number.

253123215354 is an abundant number, since it is smaller than the sum of its proper divisors (312194576646).

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

253123215354 is a wasteful number, since it uses less digits than its factorization.

253123215354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27380 (or 27374 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The spelling of 253123215354 in words is "two hundred fifty-three billion, one hundred twenty-three million, two hundred fifteen thousand, three hundred fifty-four".