252023605 has 4 divisors (see below), whose sum is σ = 302428332. Its totient is φ = 201618880.

The previous prime is 252023599. The next prime is 252023609. The reversal of 252023605 is 506320252.

252023605 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 can be written as a sum of positive squares in 2 ways, for example, as 54508689 + 197514916 = 7383^2 + 14054^2 .

It is not a de Polignac number, because 252023605 - 2⁵ = 252023573 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252023605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252023609) 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, 25202356 + ... + 25202365.

It is an arithmetic number, because the mean of its divisors is an integer number (75607083).

Almost surely, 2^252023605 is an apocalyptic number.

It is an amenable number.

252023605 is a deficient number, since it is larger than the sum of its proper divisors (50404727).

252023605 is an equidigital number, since it uses as much as digits as its factorization.

252023605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50404726.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 252023605 is about 15875.2513365931. The cubic root of 252023605 is about 631.6556810637.

Adding to 252023605 its reverse (506320252), we get a palindrome (758343857).

The spelling of 252023605 in words is "two hundred fifty-two million, twenty-three thousand, six hundred five".