252237566 has 8 divisors (see below), whose sum is σ = 432407280. Its totient is φ = 108101808.

The previous prime is 252237553. The next prime is 252237569. The reversal of 252237566 is 665732252.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252237569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9008471 + ... + 9008498.

It is an arithmetic number, because the mean of its divisors is an integer number (54050910).

Almost surely, 2^252237566 is an apocalyptic number.

252237566 is a deficient number, since it is larger than the sum of its proper divisors (180169714).

252237566 is a wasteful number, since it uses less digits than its factorization.

252237566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18016978.

The product of its digits is 151200, while the sum is 38.

The square root of 252237566 is about 15881.9887293752. The cubic root of 252237566 is about 631.8343831778.

The spelling of 252237566 in words is "two hundred fifty-two million, two hundred thirty-seven thousand, five hundred sixty-six".