252420873 has 4 divisors (see below), whose sum is σ = 336561168. Its totient is φ = 168280580.

The previous prime is 252420851. The next prime is 252420877. The reversal of 252420873 is 378024252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 252420873 - 2⁵ = 252420841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252420877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42070143 + ... + 42070148.

It is an arithmetic number, because the mean of its divisors is an integer number (84140292).

Almost surely, 2^252420873 is an apocalyptic number.

It is an amenable number.

252420873 is a deficient number, since it is larger than the sum of its proper divisors (84140295).

252420873 is an equidigital number, since it uses as much as digits as its factorization.

252420873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84140294.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 252420873 is about 15887.7585895557. The cubic root of 252420873 is about 631.9874024421.

The spelling of 252420873 in words is "two hundred fifty-two million, four hundred twenty thousand, eight hundred seventy-three".