252526393 has 4 divisors (see below), whose sum is σ = 288601600. Its totient is φ = 216451188.

The previous prime is 252526387. The next prime is 252526429. The reversal of 252526393 is 393625252.

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 252526393 - 2²¹ = 250429241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252526303) 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 3 ways as a sum of consecutive naturals, for example, 18037593 + ... + 18037606.

It is an arithmetic number, because the mean of its divisors is an integer number (72150400).

Almost surely, 2^252526393 is an apocalyptic number.

It is an amenable number.

252526393 is a deficient number, since it is larger than the sum of its proper divisors (36075207).

252526393 is an equidigital number, since it uses as much as digits as its factorization.

252526393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36075206.

The product of its digits is 97200, while the sum is 37.

The square root of 252526393 is about 15891.0790382529. The cubic root of 252526393 is about 632.0754538244.

The spelling of 252526393 in words is "two hundred fifty-two million, five hundred twenty-six thousand, three hundred ninety-three".