232510561 has 2 divisors, whose sum is σ = 232510562. Its totient is φ = 232510560.

The previous prime is 232510529. The next prime is 232510573. The reversal of 232510561 is 165015232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166900561 + 65610000 = 12919^2 + 8100^2 .

It is a cyclic number.

It is not a de Polignac number, because 232510561 - 2⁵ = 232510529 is a prime.

It is a super-2 number, since 2×232510561² = 108122321953069442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (232510511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116255280 + 116255281.

It is an arithmetic number, because the mean of its divisors is an integer number (116255281).

Almost surely, 2^232510561 is an apocalyptic number.

It is an amenable number.

232510561 is a deficient number, since it is larger than the sum of its proper divisors (1).

232510561 is an equidigital number, since it uses as much as digits as its factorization.

232510561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 232510561 is about 15248.2969868769. The cubic root of 232510561 is about 614.9137834942.

Adding to 232510561 its reverse (165015232), we get a palindrome (397525793).

The spelling of 232510561 in words is "two hundred thirty-two million, five hundred ten thousand, five hundred sixty-one".