252666530 has 16 divisors (see below), whose sum is σ = 455678784. Its totient is φ = 100871280.

The previous prime is 252666521. The next prime is 252666539. The reversal of 252666530 is 35666252.

252666530 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 (252666521) and next prime (252666539).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252666539) 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, 18926 + ... + 29385.

It is an arithmetic number, because the mean of its divisors is an integer number (28479924).

Almost surely, 2^252666530 is an apocalyptic number.

252666530 is a deficient number, since it is larger than the sum of its proper divisors (203012254).

252666530 is a wasteful number, since it uses less digits than its factorization.

252666530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48841.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 252666530 is about 15895.4877245085. The cubic root of 252666530 is about 632.1923535233.

The spelling of 252666530 in words is "two hundred fifty-two million, six hundred sixty-six thousand, five hundred thirty".