252401305 has 16 divisors (see below), whose sum is σ = 326539584. Its totient is φ = 186183360.

The previous prime is 252401299. The next prime is 252401311. The reversal of 252401305 is 503104252.

It is an interprime number because it is at equal distance from previous prime (252401299) and next prime (252401311).

It is not a de Polignac number, because 252401305 - 2⁵ = 252401273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83470 + ... + 86440.

It is an arithmetic number, because the mean of its divisors is an integer number (20408724).

Almost surely, 2^252401305 is an apocalyptic number.

It is an amenable number.

252401305 is a deficient number, since it is larger than the sum of its proper divisors (74138279).

252401305 is a wasteful number, since it uses less digits than its factorization.

252401305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4296.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 252401305 is about 15887.1427575886. The cubic root of 252401305 is about 631.9710711869.

Adding to 252401305 its reverse (503104252), we get a palindrome (755505557).

The spelling of 252401305 in words is "two hundred fifty-two million, four hundred one thousand, three hundred five".