252351245 has 4 divisors (see below), whose sum is σ = 302821500. Its totient is φ = 201880992.

The previous prime is 252351233. The next prime is 252351251. The reversal of 252351245 is 542153252.

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 119202724 + 133148521 = 10918^2 + 11539^2 .

It is a cyclic number.

It is not a de Polignac number, because 252351245 - 2⁶ = 252351181 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 3 ways as a sum of consecutive naturals, for example, 25235120 + ... + 25235129.

It is an arithmetic number, because the mean of its divisors is an integer number (75705375).

Almost surely, 2^252351245 is an apocalyptic number.

It is an amenable number.

252351245 is a deficient number, since it is larger than the sum of its proper divisors (50470255).

252351245 is an equidigital number, since it uses as much as digits as its factorization.

252351245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50470254.

The product of its digits is 12000, while the sum is 29.

The square root of 252351245 is about 15885.5671916366. The cubic root of 252351245 is about 631.9292877743.

The spelling of 252351245 in words is "two hundred fifty-two million, three hundred fifty-one thousand, two hundred forty-five".