252218358 has 96 divisors (see below), whose sum is σ = 670752576. Its totient is φ = 66852864.

The previous prime is 252218357. The next prime is 252218363. The reversal of 252218358 is 853812252.

252218358 is a `hidden beast` number, since 2 + 522 + 1 + 83 + 58 = 666.

252218358 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×252218358² = 127228200224432328, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252218357) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 155560 + ... + 157172.

It is an arithmetic number, because the mean of its divisors is an integer number (6987006).

Almost surely, 2^252218358 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252218358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335376288).

252218358 is an abundant number, since it is smaller than the sum of its proper divisors (418534218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252218358 is a wasteful number, since it uses less digits than its factorization.

252218358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718 (or 1715 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 252218358 is about 15881.3840076991. The cubic root of 252218358 is about 631.8183446167.

The spelling of 252218358 in words is "two hundred fifty-two million, two hundred eighteen thousand, three hundred fifty-eight".