253505215525231 has 2 divisors, whose sum is σ = 253505215525232. Its totient is φ = 253505215525230.

The previous prime is 253505215525183. The next prime is 253505215525283. The reversal of 253505215525231 is 132525512505352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253505215525231 - 2⁷ = 253505215525103 is a prime.

It is a super-2 number, since 2×253505215525231² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253505215529231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126752607762615 + 126752607762616.

It is an arithmetic number, because the mean of its divisors is an integer number (126752607762616).

Almost surely, 2^{253505215525231} is an apocalyptic number.

253505215525231 is a deficient number, since it is larger than the sum of its proper divisors (1).

253505215525231 is an equidigital number, since it uses as much as digits as its factorization.

253505215525231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250000, while the sum is 46.

The spelling of 253505215525231 in words is "two hundred fifty-three trillion, five hundred five billion, two hundred fifteen million, five hundred twenty-five thousand, two hundred thirty-one".