252661907 has 2 divisors, whose sum is σ = 252661908. Its totient is φ = 252661906.

The previous prime is 252661879. The next prime is 252661919. The reversal of 252661907 is 709166252.

It is a happy number.

252661907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 252661907 - 2¹⁶ = 252596371 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (252660907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126330953 + 126330954.

It is an arithmetic number, because the mean of its divisors is an integer number (126330954).

Almost surely, 2^252661907 is an apocalyptic number.

252661907 is a deficient number, since it is larger than the sum of its proper divisors (1).

252661907 is an equidigital number, since it uses as much as digits as its factorization.

252661907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 252661907 is about 15895.3423052163. The cubic root of 252661907 is about 632.1884977916.

The spelling of 252661907 in words is "two hundred fifty-two million, six hundred sixty-one thousand, nine hundred seven".