252663973 has 2 divisors, whose sum is σ = 252663974. Its totient is φ = 252663972.

The previous prime is 252663967. The next prime is 252663997. The reversal of 252663973 is 379366252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192709924 + 59954049 = 13882^2 + 7743^2 .

It is a cyclic number.

It is not a de Polignac number, because 252663973 - 2⁹ = 252663461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252363973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126331986 + 126331987.

It is an arithmetic number, because the mean of its divisors is an integer number (126331987).

Almost surely, 2^252663973 is an apocalyptic number.

It is an amenable number.

252663973 is a deficient number, since it is larger than the sum of its proper divisors (1).

252663973 is an equidigital number, since it uses as much as digits as its factorization.

252663973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 43.

The square root of 252663973 is about 15895.4072926742. The cubic root of 252663973 is about 632.1902209083.

It can be divided in two parts, 252 and 663973, that added together give a square (664225 = 815²).

The spelling of 252663973 in words is "two hundred fifty-two million, six hundred sixty-three thousand, nine hundred seventy-three".