253520325 has 72 divisors (see below), whose sum is σ = 493658880. Its totient is φ = 123897600.

The previous prime is 253520279. The next prime is 253520353. The reversal of 253520325 is 523025352.

It is not a de Polignac number, because 253520325 - 2¹² = 253516229 is a prime.

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, 131569 + ... + 133481.

Almost surely, 2^253520325 is an apocalyptic number.

253520325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253520325 is a deficient number, since it is larger than the sum of its proper divisors (240138555).

253520325 is a wasteful number, since it uses less digits than its factorization.

253520325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979 (or 1971 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 253520325 is about 15922.3215957975. The cubic root of 253520325 is about 632.9036412851.

Adding to 253520325 its reverse (523025352), we get a palindrome (776545677).

The spelling of 253520325 in words is "two hundred fifty-three million, five hundred twenty thousand, three hundred twenty-five".