252423213 has 16 divisors (see below), whose sum is σ = 395041920. Its totient is φ = 140342976.

The previous prime is 252423211. The next prime is 252423217. The reversal of 252423213 is 312324252.

It is not a de Polignac number, because 252423213 - 2¹ = 252423211 is a prime.

It is a super-2 number, since 2×252423213² = 127434956922486738, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252423211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161658 + ... + 163211.

It is an arithmetic number, because the mean of its divisors is an integer number (24690120).

Almost surely, 2^252423213 is an apocalyptic number.

It is an amenable number.

252423213 is a deficient number, since it is larger than the sum of its proper divisors (142618707).

252423213 is a wasteful number, since it uses less digits than its factorization.

252423213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324916.

The product of its digits is 2880, while the sum is 24.

The square root of 252423213 is about 15887.8322309873. The cubic root of 252423213 is about 631.9893553260.

Adding to 252423213 its reverse (312324252), we get a palindrome (564747465).

The spelling of 252423213 in words is "two hundred fifty-two million, four hundred twenty-three thousand, two hundred thirteen".