252839881 has 4 divisors (see below), whose sum is σ = 288959872. Its totient is φ = 216719892.

The previous prime is 252839857. The next prime is 252839887. The reversal of 252839881 is 188938252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 252839881 - 2⁵ = 252839849 is a prime.

It is a super-2 number, since 2×252839881² = 127856010848188322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252839887) by changing a digit.

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, 18059985 + ... + 18059998.

It is an arithmetic number, because the mean of its divisors is an integer number (72239968).

Almost surely, 2^252839881 is an apocalyptic number.

It is an amenable number.

252839881 is a deficient number, since it is larger than the sum of its proper divisors (36119991).

252839881 is an equidigital number, since it uses as much as digits as its factorization.

252839881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36119990.

The product of its digits is 276480, while the sum is 46.

The square root of 252839881 is about 15900.9396263240. The cubic root of 252839881 is about 632.3368999382.

The spelling of 252839881 in words is "two hundred fifty-two million, eight hundred thirty-nine thousand, eight hundred eighty-one".