252618066 has 24 divisors (see below), whose sum is σ = 548921100. Its totient is φ = 83962656.

The previous prime is 252618049. The next prime is 252618083. The reversal of 252618066 is 660816252.

252618066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (252618049) and next prime (252618083).

It can be written as a sum of positive squares in 2 ways, for example, as 250430625 + 2187441 = 15825^2 + 1479^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 252618066.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13825 + ... + 26388.

Almost surely, 2^252618066 is an apocalyptic number.

252618066 is an abundant number, since it is smaller than the sum of its proper divisors (296303034).

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

252618066 is a wasteful number, since it uses less digits than its factorization.

252618066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40570 (or 40567 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 252618066 is about 15893.9631936154. The cubic root of 252618066 is about 632.1519306395.

The spelling of 252618066 in words is "two hundred fifty-two million, six hundred eighteen thousand, sixty-six".