252737866 has 8 divisors (see below), whose sum is σ = 379522080. Its totient is φ = 126230508.

The previous prime is 252737809. The next prime is 252737873. The reversal of 252737866 is 668737252.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66916 + ... + 70591.

It is an arithmetic number, because the mean of its divisors is an integer number (47440260).

Almost surely, 2^252737866 is an apocalyptic number.

252737866 is a deficient number, since it is larger than the sum of its proper divisors (126784214).

252737866 is a wasteful number, since it uses less digits than its factorization.

252737866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138428.

The product of its digits is 846720, while the sum is 46.

The square root of 252737866 is about 15897.7314733895. The cubic root of 252737866 is about 632.2518440966.

The spelling of 252737866 in words is "two hundred fifty-two million, seven hundred thirty-seven thousand, eight hundred sixty-six".