252043881 has 4 divisors (see below), whose sum is σ = 336058512. Its totient is φ = 168029252.

The previous prime is 252043877. The next prime is 252043943. The reversal of 252043881 is 188340252.

252043881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 252043881 - 2² = 252043877 is a prime.

It is a super-2 number, since 2×252043881² = 127052235899084322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252043381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42007311 + ... + 42007316.

It is an arithmetic number, because the mean of its divisors is an integer number (84014628).

Almost surely, 2^252043881 is an apocalyptic number.

It is an amenable number.

252043881 is a deficient number, since it is larger than the sum of its proper divisors (84014631).

252043881 is an equidigital number, since it uses as much as digits as its factorization.

252043881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84014630.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 252043881 is about 15875.8899278119. The cubic root of 252043881 is about 631.6726200949.

The spelling of 252043881 in words is "two hundred fifty-two million, forty-three thousand, eight hundred eighty-one".