252806279 has 16 divisors (see below), whose sum is σ = 282686976. Its totient is φ = 224112000.

The previous prime is 252806273. The next prime is 252806293. The reversal of 252806279 is 972608252.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252806279 is a prime.

It is a super-2 number, since 2×252806279² = 127822029403651682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252806273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173504 + ... + 174954.

It is an arithmetic number, because the mean of its divisors is an integer number (17667936).

Almost surely, 2^252806279 is an apocalyptic number.

252806279 is a deficient number, since it is larger than the sum of its proper divisors (29880697).

252806279 is a wasteful number, since it uses less digits than its factorization.

252806279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 252806279 is about 15899.8829869908. The cubic root of 252806279 is about 632.3088865228.

The spelling of 252806279 in words is "two hundred fifty-two million, eight hundred six thousand, two hundred seventy-nine".