253433407625 has 32 divisors (see below), whose sum is σ = 324091351584. Its totient is φ = 197745408000.

The previous prime is 253433407621. The next prime is 253433407627. The reversal of 253433407625 is 526704334352.

It can be written as a sum of positive squares in 16 ways, for example, as 246958308601 + 6475099024 = 496949^2 + 80468^2 .

It is not a de Polignac number, because 253433407625 - 2² = 253433407621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (253433407621) 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, 35015507 + ... + 35022743.

It is an arithmetic number, because the mean of its divisors is an integer number (10127854737).

Almost surely, 2^253433407625 is an apocalyptic number.

253433407625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253433407625 is a deficient number, since it is larger than the sum of its proper divisors (70657943959).

253433407625 is an equidigital number, since it uses as much as digits as its factorization.

253433407625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14126 (or 14116 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 44.

The spelling of 253433407625 in words is "two hundred fifty-three billion, four hundred thirty-three million, four hundred seven thousand, six hundred twenty-five".