252530987 has 2 divisors, whose sum is σ = 252530988. Its totient is φ = 252530986.

The previous prime is 252530981. The next prime is 252531023. The reversal of 252530987 is 789035252.

252530987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252530987 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (252530981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126265493 + 126265494.

It is an arithmetic number, because the mean of its divisors is an integer number (126265494).

Almost surely, 2^252530987 is an apocalyptic number.

252530987 is a deficient number, since it is larger than the sum of its proper divisors (1).

252530987 is an equidigital number, since it uses as much as digits as its factorization.

252530987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 252530987 is about 15891.2235841045. The cubic root of 252530987 is about 632.0792867400.

The spelling of 252530987 in words is "two hundred fifty-two million, five hundred thirty thousand, nine hundred eighty-seven".