252043505 has 12 divisors (see below), whose sum is σ = 351832500. Its totient is φ = 172829664.

The previous prime is 252043501. The next prime is 252043537. The reversal of 252043505 is 505340252.

252043505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 181953121 + 70090384 = 13489^2 + 8372^2 .

It is not a de Polignac number, because 252043505 - 2² = 252043501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252043501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 514130 + ... + 514619.

It is an arithmetic number, because the mean of its divisors is an integer number (29319375).

Almost surely, 2^252043505 is an apocalyptic number.

It is an amenable number.

252043505 is a deficient number, since it is larger than the sum of its proper divisors (99788995).

252043505 is a wasteful number, since it uses less digits than its factorization.

252043505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028768 (or 1028761 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 252043505 is about 15875.8780859517. The cubic root of 252043505 is about 631.6723059842.

Adding to 252043505 its reverse (505340252), we get a palindrome (757383757).

The spelling of 252043505 in words is "two hundred fifty-two million, forty-three thousand, five hundred five".