252247765 has 32 divisors (see below), whose sum is σ = 379975680. Its totient is φ = 156168000.

The previous prime is 252247741. The next prime is 252247769. The reversal of 252247765 is 567742252.

It is not a de Polignac number, because 252247765 - 2¹⁵ = 252214997 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252247769) 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 in 31 ways as a sum of consecutive naturals, for example, 55966 + ... + 60304.

It is an arithmetic number, because the mean of its divisors is an integer number (11874240).

Almost surely, 2^252247765 is an apocalyptic number.

It is an amenable number.

252247765 is a deficient number, since it is larger than the sum of its proper divisors (127727915).

252247765 is a wasteful number, since it uses less digits than its factorization.

252247765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4513.

The product of its digits is 235200, while the sum is 40.

The square root of 252247765 is about 15882.3098131223. The cubic root of 252247765 is about 631.8428989488.

The spelling of 252247765 in words is "two hundred fifty-two million, two hundred forty-seven thousand, seven hundred sixty-five".