253540232 has 16 divisors (see below), whose sum is σ = 518605200. Its totient is φ = 115245520.

The previous prime is 253540229. The next prime is 253540241. The reversal of 253540232 is 232045352.

It is a super-2 number, since 2×253540232² = 128565298485227648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440482 + ... + 1440657.

It is an arithmetic number, because the mean of its divisors is an integer number (32412825).

Almost surely, 2^253540232 is an apocalyptic number.

253540232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

253540232 is an abundant number, since it is smaller than the sum of its proper divisors (265064968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253540232 is a wasteful number, since it uses less digits than its factorization.

253540232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881156 (or 2881152 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 253540232 is about 15922.9467122138. The cubic root of 253540232 is about 632.9202065356.

Adding to 253540232 its reverse (232045352), we get a palindrome (485585584).

The spelling of 253540232 in words is "two hundred fifty-three million, five hundred forty thousand, two hundred thirty-two".