252664207 has 2 divisors, whose sum is σ = 252664208. Its totient is φ = 252664206.

The previous prime is 252664189. The next prime is 252664219. The reversal of 252664207 is 702466252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 252664207 - 2²³ = 244275599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252664267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126332103 + 126332104.

It is an arithmetic number, because the mean of its divisors is an integer number (126332104).

Almost surely, 2^252664207 is an apocalyptic number.

252664207 is a deficient number, since it is larger than the sum of its proper divisors (1).

252664207 is an equidigital number, since it uses as much as digits as its factorization.

252664207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 252664207 is about 15895.4146532892. The cubic root of 252664207 is about 632.1904160720.

The spelling of 252664207 in words is "two hundred fifty-two million, six hundred sixty-four thousand, two hundred seven".