252802779 has 4 divisors (see below), whose sum is σ = 337070376. Its totient is φ = 168535184.

The previous prime is 252802769. The next prime is 252802783. The reversal of 252802779 is 977208252.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252802779 - 2¹¹ = 252800731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252802779.

It is not an unprimeable number, because it can be changed into a prime (252802709) by changing a digit.

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, 42133794 + ... + 42133799.

It is an arithmetic number, because the mean of its divisors is an integer number (84267594).

Almost surely, 2^252802779 is an apocalyptic number.

252802779 is a deficient number, since it is larger than the sum of its proper divisors (84267597).

252802779 is an equidigital number, since it uses as much as digits as its factorization.

252802779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84267596.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 252802779 is about 15899.7729229068. The cubic root of 252802779 is about 632.3059684897.

The spelling of 252802779 in words is "two hundred fifty-two million, eight hundred two thousand, seven hundred seventy-nine".