252404005 has 16 divisors (see below), whose sum is σ = 348687360. Its totient is φ = 171810432.

The previous prime is 252403979. The next prime is 252404051. The reversal of 252404005 is 500404252.

It is a cyclic number.

It is not a de Polignac number, because 252404005 - 2¹⁵ = 252371237 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 21525 + ... + 31114.

It is an arithmetic number, because the mean of its divisors is an integer number (21792960).

Almost surely, 2^252404005 is an apocalyptic number.

It is an amenable number.

252404005 is a deficient number, since it is larger than the sum of its proper divisors (96283355).

252404005 is a wasteful number, since it uses less digits than its factorization.

252404005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52788.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 252404005 is about 15887.2277317347. The cubic root of 252404005 is about 631.9733246299.

Adding to 252404005 its reverse (500404252), we get a palindrome (752808257).

The spelling of 252404005 in words is "two hundred fifty-two million, four hundred four thousand, five".