232521253 has 8 divisors (see below), whose sum is σ = 240944000. Its totient is φ = 224235648.

The previous prime is 232521251. The next prime is 232521269. The reversal of 232521253 is 352125232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 232521253 - 2¹ = 232521251 is a prime.

It is a super-2 number, since 2×232521253² = 108132266193380018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232521251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30828 + ... + 37621.

It is an arithmetic number, because the mean of its divisors is an integer number (30118000).

Almost surely, 2^232521253 is an apocalyptic number.

It is an amenable number.

232521253 is a deficient number, since it is larger than the sum of its proper divisors (8422747).

232521253 is an equidigital number, since it uses as much as digits as its factorization.

232521253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68571.

The product of its digits is 3600, while the sum is 25.

The square root of 232521253 is about 15248.6475793757. The cubic root of 232521253 is about 614.9232089548.

Adding to 232521253 its reverse (352125232), we get a palindrome (584646485).

The spelling of 232521253 in words is "two hundred thirty-two million, five hundred twenty-one thousand, two hundred fifty-three".