252205231 has 4 divisors (see below), whose sum is σ = 252588600. Its totient is φ = 251821864.

The previous prime is 252205207. The next prime is 252205241. The reversal of 252205231 is 132502252.

252205231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252205231 - 2⁷ = 252205103 is a prime.

It is a super-2 number, since 2×252205231² = 127214957087526722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252205201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190696 + ... + 192013.

It is an arithmetic number, because the mean of its divisors is an integer number (63147150).

Almost surely, 2^252205231 is an apocalyptic number.

252205231 is a deficient number, since it is larger than the sum of its proper divisors (383369).

252205231 is an equidigital number, since it uses as much as digits as its factorization.

252205231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383368.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 252205231 is about 15880.9707197010. The cubic root of 252205231 is about 631.8073831845.

Adding to 252205231 its reverse (132502252), we get a palindrome (384707483).

The spelling of 252205231 in words is "two hundred fifty-two million, two hundred five thousand, two hundred thirty-one".