252276666 has 8 divisors (see below), whose sum is σ = 504553344. Its totient is φ = 84092220.

The previous prime is 252276653. The next prime is 252276707. The reversal of 252276666 is 666672252.

It is a happy number.

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

252276666 is an admirable number.

It is an unprimeable number.

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, 21023050 + ... + 21023061.

It is an arithmetic number, because the mean of its divisors is an integer number (63069168).

Almost surely, 2^252276666 is an apocalyptic number.

252276666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

252276666 is a wasteful number, since it uses less digits than its factorization.

252276666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42046116.

The product of its digits is 362880, while the sum is 42.

The square root of 252276666 is about 15883.2196358295. The cubic root of 252276666 is about 631.8670289205.

The spelling of 252276666 in words is "two hundred fifty-two million, two hundred seventy-six thousand, six hundred sixty-six".