252816782 has 32 divisors (see below), whose sum is σ = 411220800. Its totient is φ = 116252928.

The previous prime is 252816779. The next prime is 252816799. The reversal of 252816782 is 287618252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150644 + ... + 152312.

It is an arithmetic number, because the mean of its divisors is an integer number (12850650).

Almost surely, 2^252816782 is an apocalyptic number.

252816782 is a deficient number, since it is larger than the sum of its proper divisors (158404018).

252816782 is a wasteful number, since it uses less digits than its factorization.

252816782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820.

The product of its digits is 107520, while the sum is 41.

The square root of 252816782 is about 15900.2132690099. The cubic root of 252816782 is about 632.3176429618.

The spelling of 252816782 in words is "two hundred fifty-two million, eight hundred sixteen thousand, seven hundred eighty-two".