252764729 has 4 divisors (see below), whose sum is σ = 288873984. Its totient is φ = 216655476.

The previous prime is 252764719. The next prime is 252764747. The reversal of 252764729 is 927467252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 252764729 - 2¹² = 252760633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252764729.

It is not an unprimeable number, because it can be changed into a prime (252764719) 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 3 ways as a sum of consecutive naturals, for example, 18054617 + ... + 18054630.

It is an arithmetic number, because the mean of its divisors is an integer number (72218496).

Almost surely, 2^252764729 is an apocalyptic number.

It is an amenable number.

252764729 is a deficient number, since it is larger than the sum of its proper divisors (36109255).

252764729 is an equidigital number, since it uses as much as digits as its factorization.

252764729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36109254.

The product of its digits is 423360, while the sum is 44.

The square root of 252764729 is about 15898.5763199099. The cubic root of 252764729 is about 632.2742435625.

The spelling of 252764729 in words is "two hundred fifty-two million, seven hundred sixty-four thousand, seven hundred twenty-nine".