252403805 has 4 divisors (see below), whose sum is σ = 302884572. Its totient is φ = 201923040.

The previous prime is 252403799. The next prime is 252403813. The reversal of 252403805 is 508304252.

252403805 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 87871876 + 164531929 = 9374^2 + 12827^2 .

It is not a de Polignac number, because 252403805 - 2⁶ = 252403741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25240376 + ... + 25240385.

It is an arithmetic number, because the mean of its divisors is an integer number (75721143).

Almost surely, 2^252403805 is an apocalyptic number.

It is an amenable number.

252403805 is a deficient number, since it is larger than the sum of its proper divisors (50480767).

252403805 is an equidigital number, since it uses as much as digits as its factorization.

252403805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50480766.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 252403805 is about 15887.2214373691. The cubic root of 252403805 is about 631.9731577087.

The spelling of 252403805 in words is "two hundred fifty-two million, four hundred three thousand, eight hundred five".