252439673 has 2 divisors, whose sum is σ = 252439674. Its totient is φ = 252439672.

The previous prime is 252439669. The next prime is 252439711. The reversal of 252439673 is 376934252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230189584 + 22250089 = 15172^2 + 4717^2 .

It is a cyclic number.

It is not a de Polignac number, because 252439673 - 2² = 252439669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252439673.

It is not a weakly prime, because it can be changed into another prime (252439373) 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, 126219836 + 126219837.

It is an arithmetic number, because the mean of its divisors is an integer number (126219837).

Almost surely, 2^252439673 is an apocalyptic number.

It is an amenable number.

252439673 is a deficient number, since it is larger than the sum of its proper divisors (1).

252439673 is an equidigital number, since it uses as much as digits as its factorization.

252439673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 41.

The square root of 252439673 is about 15888.3502290200. The cubic root of 252439673 is about 632.0030919373.

The spelling of 252439673 in words is "two hundred fifty-two million, four hundred thirty-nine thousand, six hundred seventy-three".