252242623 has 4 divisors (see below), whose sum is σ = 255795408. Its totient is φ = 248689840.

The previous prime is 252242611. The next prime is 252242647. The reversal of 252242623 is 326242252.

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 252242623 - 2⁵ = 252242591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252242591 and 252242600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252243623) 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, 1776286 + ... + 1776427.

It is an arithmetic number, because the mean of its divisors is an integer number (63948852).

Almost surely, 2^252242623 is an apocalyptic number.

252242623 is a deficient number, since it is larger than the sum of its proper divisors (3552785).

252242623 is an equidigital number, since it uses as much as digits as its factorization.

252242623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3552784.

The product of its digits is 11520, while the sum is 28.

The square root of 252242623 is about 15882.1479340799. The cubic root of 252242623 is about 631.8386056062.

Adding to 252242623 its reverse (326242252), we get a palindrome (578484875).

The spelling of 252242623 in words is "two hundred fifty-two million, two hundred forty-two thousand, six hundred twenty-three".