252723623 has 4 divisors (see below), whose sum is σ = 252759120. Its totient is φ = 252688128.

The previous prime is 252723613. The next prime is 252723641. The reversal of 252723623 is 326327252.

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 252723623 - 2¹⁸ = 252461479 is a prime.

It is a super-2 number, since 2×252723623² = 127738459244492258, which contains 22 as substring.

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 252723623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252723613) 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, 2963 + ... + 22676.

It is an arithmetic number, because the mean of its divisors is an integer number (63189780).

Almost surely, 2^252723623 is an apocalyptic number.

252723623 is a deficient number, since it is larger than the sum of its proper divisors (35497).

252723623 is an equidigital number, since it uses as much as digits as its factorization.

252723623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35496.

The product of its digits is 30240, while the sum is 32.

The square root of 252723623 is about 15897.2835100844. The cubic root of 252723623 is about 632.2399670580.

The spelling of 252723623 in words is "two hundred fifty-two million, seven hundred twenty-three thousand, six hundred twenty-three".