252304405 has 8 divisors (see below), whose sum is σ = 303836832. Its totient is φ = 201129168.

The previous prime is 252304397. The next prime is 252304417. The reversal of 252304405 is 504403252.

252304405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252304405 - 2³ = 252304397 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 252304405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87739 + ... + 90568.

It is an arithmetic number, because the mean of its divisors is an integer number (37979604).

Almost surely, 2^252304405 is an apocalyptic number.

It is an amenable number.

252304405 is a deficient number, since it is larger than the sum of its proper divisors (51532427).

252304405 is a wasteful number, since it uses less digits than its factorization.

252304405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178595.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 252304405 is about 15884.0928289909. The cubic root of 252304405 is about 631.8901869840.

Adding to 252304405 its reverse (504403252), we get a palindrome (756707657).

The spelling of 252304405 in words is "two hundred fifty-two million, three hundred four thousand, four hundred five".