252017917 has 8 divisors (see below), whose sum is σ = 261555840. Its totient is φ = 242536560.

The previous prime is 252017893. The next prime is 252017921. The reversal of 252017917 is 719710252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252017917 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 (252017947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4953 + ... + 22990.

It is an arithmetic number, because the mean of its divisors is an integer number (32694480).

Almost surely, 2^252017917 is an apocalyptic number.

It is an amenable number.

252017917 is a deficient number, since it is larger than the sum of its proper divisors (9537923).

252017917 is a wasteful number, since it uses less digits than its factorization.

252017917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28283.

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 252017917 is about 15875.0721888122. The cubic root of 252017917 is about 631.6509290160.

The spelling of 252017917 in words is "two hundred fifty-two million, seventeen thousand, nine hundred seventeen".