253157701572 has 72 divisors (see below), whose sum is σ = 661814899200. Its totient is φ = 81544963968.

The previous prime is 253157701549. The next prime is 253157701579. The reversal of 253157701572 is 275107751352.

253157701572 is a `hidden beast` number, since 2 + 5 + 3 + 1 + 5 + 7 + 70 + 1 + 572 = 666.

It is a super-2 number, since 2×253157701572² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (253157701579) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 813297 + ... + 1080632.

It is an arithmetic number, because the mean of its divisors is an integer number (9191873600).

Almost surely, 2^253157701572 is an apocalyptic number.

It is an amenable number.

253157701572 is an abundant number, since it is smaller than the sum of its proper divisors (408657197628).

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

253157701572 is a wasteful number, since it uses less digits than its factorization.

253157701572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894065 (or 1894060 counting only the distinct ones).

The product of its (nonzero) digits is 514500, while the sum is 45.

The spelling of 253157701572 in words is "two hundred fifty-three billion, one hundred fifty-seven million, seven hundred one thousand, five hundred seventy-two".