232053521 has 4 divisors (see below), whose sum is σ = 265204032. Its totient is φ = 198903012.

The previous prime is 232053473. The next prime is 232053533. The reversal of 232053521 is 125350232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 232053521 - 2⁶ = 232053457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232053571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16575245 + ... + 16575258.

It is an arithmetic number, because the mean of its divisors is an integer number (66301008).

Almost surely, 2^232053521 is an apocalyptic number.

It is an amenable number.

232053521 is a deficient number, since it is larger than the sum of its proper divisors (33150511).

232053521 is an equidigital number, since it uses as much as digits as its factorization.

232053521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33150510.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 232053521 is about 15233.3030233105. The cubic root of 232053521 is about 614.5106125009.

The spelling of 232053521 in words is "two hundred thirty-two million, fifty-three thousand, five hundred twenty-one".