252536909 has 2 divisors, whose sum is σ = 252536910. Its totient is φ = 252536908.

The previous prime is 252536903. The next prime is 252536929. The reversal of 252536909 is 909635252.

252536909 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 can be written as a sum of positive squares in only one way, i.e., 252015625 + 521284 = 15875^2 + 722^2 .

It is a cyclic number.

It is not a de Polignac number, because 252536909 - 2⁸ = 252536653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252536903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126268454 + 126268455.

It is an arithmetic number, because the mean of its divisors is an integer number (126268455).

Almost surely, 2^252536909 is an apocalyptic number.

It is an amenable number.

252536909 is a deficient number, since it is larger than the sum of its proper divisors (1).

252536909 is an equidigital number, since it uses as much as digits as its factorization.

252536909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 252536909 is about 15891.4099122765. The cubic root of 252536909 is about 632.0842275782.

The spelling of 252536909 in words is "two hundred fifty-two million, five hundred thirty-six thousand, nine hundred nine".