252645311 has 4 divisors (see below), whose sum is σ = 252748752. Its totient is φ = 252541872.

The previous prime is 252645269. The next prime is 252645353. The reversal of 252645311 is 113546252.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (252645269) and next prime (252645353).

It is a cyclic number.

It is not a de Polignac number, because 252645311 - 2⁶ = 252645247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252642311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47966 + ... + 52971.

It is an arithmetic number, because the mean of its divisors is an integer number (63187188).

Almost surely, 2^252645311 is an apocalyptic number.

252645311 is a deficient number, since it is larger than the sum of its proper divisors (103441).

252645311 is a wasteful number, since it uses less digits than its factorization.

252645311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103440.

The product of its digits is 7200, while the sum is 29.

The square root of 252645311 is about 15894.8202569265. The cubic root of 252645311 is about 632.1746558026.

The spelling of 252645311 in words is "two hundred fifty-two million, six hundred forty-five thousand, three hundred eleven".