232525721 has 2 divisors, whose sum is σ = 232525722. Its totient is φ = 232525720.

The previous prime is 232525703. The next prime is 232525739. The reversal of 232525721 is 127525232.

It is a balanced prime because it is at equal distance from previous prime (232525703) and next prime (232525739).

It can be written as a sum of positive squares in only one way, i.e., 144841225 + 87684496 = 12035^2 + 9364^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232525721 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (232525751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116262860 + 116262861.

It is an arithmetic number, because the mean of its divisors is an integer number (116262861).

Almost surely, 2^232525721 is an apocalyptic number.

It is an amenable number.

232525721 is a deficient number, since it is larger than the sum of its proper divisors (1).

232525721 is an equidigital number, since it uses as much as digits as its factorization.

232525721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 29.

The square root of 232525721 is about 15248.7940834677. The cubic root of 232525721 is about 614.9271476045.

The spelling of 232525721 in words is "two hundred thirty-two million, five hundred twenty-five thousand, seven hundred twenty-one".