252664317 has 6 divisors (see below), whose sum is σ = 364959582. Its totient is φ = 168442872.

The previous prime is 252664301. The next prime is 252664351. The reversal of 252664317 is 713466252.

252664317 is a `hidden beast` number, since 2 + 5 + 2 + 6 + 643 + 1 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 230705721 + 21958596 = 15189^2 + 4686^2 .

It is not a de Polignac number, because 252664317 - 2⁴ = 252664301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252664117) 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 5 ways as a sum of consecutive naturals, for example, 14036898 + ... + 14036915.

It is an arithmetic number, because the mean of its divisors is an integer number (60826597).

Almost surely, 2^252664317 is an apocalyptic number.

It is an amenable number.

252664317 is a deficient number, since it is larger than the sum of its proper divisors (112295265).

252664317 is a wasteful number, since it uses less digits than its factorization.

252664317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28073819 (or 28073816 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 252664317 is about 15895.4181134061. The cubic root of 252664317 is about 632.1905078155.

The spelling of 252664317 in words is "two hundred fifty-two million, six hundred sixty-four thousand, three hundred seventeen".