252592739 has 12 divisors (see below), whose sum is σ = 301778736. Its totient is φ = 207091632.

The previous prime is 252592729. The next prime is 252592763. The reversal of 252592739 is 937295252.

It is not a de Polignac number, because 252592739 - 2¹⁶ = 252527203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252592739.

It is not an unprimeable number, because it can be changed into a prime (252592729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30404 + ... + 37809.

It is an arithmetic number, because the mean of its divisors is an integer number (25148228).

Almost surely, 2^252592739 is an apocalyptic number.

252592739 is a deficient number, since it is larger than the sum of its proper divisors (49185997).

252592739 is an equidigital number, since it uses as much as digits as its factorization.

252592739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68266 (or 68243 counting only the distinct ones).

The product of its digits is 340200, while the sum is 44.

The square root of 252592739 is about 15893.1664245990. The cubic root of 252592739 is about 632.1308038224.

The spelling of 252592739 in words is "two hundred fifty-two million, five hundred ninety-two thousand, seven hundred thirty-nine".