232520531 has 2 divisors, whose sum is σ = 232520532. Its totient is φ = 232520530.

The previous prime is 232520513. The next prime is 232520551. The reversal of 232520531 is 135025232.

Together with previous prime (232520513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 232520531 - 2⁶ = 232520467 is a prime.

It is a super-2 number, since 2×232520531² = 108131594673043922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 232520497 and 232520506.

It is not a weakly prime, because it can be changed into another prime (232520551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116260265 + 116260266.

It is an arithmetic number, because the mean of its divisors is an integer number (116260266).

Almost surely, 2^232520531 is an apocalyptic number.

232520531 is a deficient number, since it is larger than the sum of its proper divisors (1).

232520531 is an equidigital number, since it uses as much as digits as its factorization.

232520531 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 23.

The square root of 232520531 is about 15248.6239051267. The cubic root of 232520531 is about 614.9225724896.

Adding to 232520531 its reverse (135025232), we get a palindrome (367545763).

The spelling of 232520531 in words is "two hundred thirty-two million, five hundred twenty thousand, five hundred thirty-one".