253505215525245 has 64 divisors (see below), whose sum is σ = 429640527545856. Its totient is φ = 127198466334720.

The previous prime is 253505215525231. The next prime is 253505215525283. The reversal of 253505215525245 is 542525512505352.

It is not a de Polignac number, because 253505215525245 - 2⁸ = 253505215524989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11535012697 + ... + 11535034673.

It is an arithmetic number, because the mean of its divisors is an integer number (6713133242904).

Almost surely, 2^{253505215525245} is an apocalyptic number.

It is an amenable number.

253505215525245 is a deficient number, since it is larger than the sum of its proper divisors (176135312020611).

253505215525245 is a wasteful number, since it uses less digits than its factorization.

253505215525245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38150.

The product of its (nonzero) digits is 15000000, while the sum is 51.

The spelling of 253505215525245 in words is "two hundred fifty-three trillion, five hundred five billion, two hundred fifteen million, five hundred twenty-five thousand, two hundred forty-five".