252217087 has 8 divisors (see below), whose sum is σ = 258526656. Its totient is φ = 245946912.

The previous prime is 252217081. The next prime is 252217111. The reversal of 252217087 is 780712252.

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

It is a cyclic number.

It is not a de Polignac number, because 252217087 - 2³ = 252217079 is a prime.

It is a super-2 number, since 2×252217087² = 127226917949531138, 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 (252217081) 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, 3333 + ... + 22705.

It is an arithmetic number, because the mean of its divisors is an integer number (32315832).

Almost surely, 2^252217087 is an apocalyptic number.

252217087 is a deficient number, since it is larger than the sum of its proper divisors (6309569).

252217087 is a wasteful number, since it uses less digits than its factorization.

252217087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19697.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 252217087 is about 15881.3439922445. The cubic root of 252217087 is about 631.8172833108.

The spelling of 252217087 in words is "two hundred fifty-two million, two hundred seventeen thousand, eighty-seven".