252740863 has 2 divisors, whose sum is σ = 252740864. Its totient is φ = 252740862.

The previous prime is 252740857. The next prime is 252740879. The reversal of 252740863 is 368047252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252740863 - 2⁹ = 252740351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252740843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126370431 + 126370432.

It is an arithmetic number, because the mean of its divisors is an integer number (126370432).

Almost surely, 2^252740863 is an apocalyptic number.

252740863 is a deficient number, since it is larger than the sum of its proper divisors (1).

252740863 is an equidigital number, since it uses as much as digits as its factorization.

252740863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 252740863 is about 15897.8257318414. The cubic root of 252740863 is about 632.2543431962.

The spelling of 252740863 in words is "two hundred fifty-two million, seven hundred forty thousand, eight hundred sixty-three".