253608931 has 2 divisors, whose sum is σ = 253608932. Its totient is φ = 253608930.

The previous prime is 253608919. The next prime is 253608961. The reversal of 253608931 is 139806352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253608931 - 2²¹ = 251511779 is a prime.

It is a super-2 number, since 2×253608931² = 128634979765925522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (253608911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126804465 + 126804466.

It is an arithmetic number, because the mean of its divisors is an integer number (126804466).

Almost surely, 2^253608931 is an apocalyptic number.

253608931 is a deficient number, since it is larger than the sum of its proper divisors (1).

253608931 is an equidigital number, since it uses as much as digits as its factorization.

253608931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 253608931 is about 15925.1037987198. The cubic root of 253608931 is about 632.9773665089.

The spelling of 253608931 in words is "two hundred fifty-three million, six hundred eight thousand, nine hundred thirty-one".