252766317 has 4 divisors (see below), whose sum is σ = 337021760. Its totient is φ = 168510876.

The previous prime is 252766303. The next prime is 252766331. The reversal of 252766317 is 713667252.

252766317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (252766303) and next prime (252766331).

It is not a de Polignac number, because 252766317 - 2¹⁵ = 252733549 is a prime.

It is a super-2 number, since 2×252766317² = 127781622019488978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252566317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42127717 + ... + 42127722.

It is an arithmetic number, because the mean of its divisors is an integer number (84255440).

Almost surely, 2^252766317 is an apocalyptic number.

It is an amenable number.

252766317 is a deficient number, since it is larger than the sum of its proper divisors (84255443).

252766317 is an equidigital number, since it uses as much as digits as its factorization.

252766317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84255442.

The product of its digits is 105840, while the sum is 39.

The square root of 252766317 is about 15898.6262614101. The cubic root of 252766317 is about 632.2755676520.

The spelling of 252766317 in words is "two hundred fifty-two million, seven hundred sixty-six thousand, three hundred seventeen".