253635452925 has 72 divisors (see below), whose sum is σ = 452113536096. Its totient is φ = 125414108160.

The previous prime is 253635452869. The next prime is 253635452969. The reversal of 253635452925 is 529254536352.

It is a happy number.

It is not a de Polignac number, because 253635452925 - 2⁷ = 253635452797 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 71 ways as a sum of consecutive naturals, for example, 1364899 + ... + 1539551.

It is an arithmetic number, because the mean of its divisors is an integer number (6279354668).

Almost surely, 2^253635452925 is an apocalyptic number.

253635452925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253635452925 is a deficient number, since it is larger than the sum of its proper divisors (198478083171).

253635452925 is a wasteful number, since it uses less digits than its factorization.

253635452925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174767 (or 174745 counting only the distinct ones).

The product of its digits is 9720000, while the sum is 51.

The spelling of 253635452925 in words is "two hundred fifty-three billion, six hundred thirty-five million, four hundred fifty-two thousand, nine hundred twenty-five".