252392881 has 6 divisors (see below), whose sum is σ = 273301350. Its totient is φ = 232977888.

The previous prime is 252392831. The next prime is 252392891. The reversal of 252392881 is 188293252.

It can be written as a sum of positive squares in 3 ways, for example, as 18792225 + 233600656 = 4335^2 + 15284^2 .

It is not a de Polignac number, because 252392881 - 2¹⁵ = 252360113 is a prime.

It is a super-2 number, since 2×252392881² = 127404332758960322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252392801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 746556 + ... + 746893.

It is an arithmetic number, because the mean of its divisors is an integer number (45550225).

Almost surely, 2^252392881 is an apocalyptic number.

It is an amenable number.

252392881 is a deficient number, since it is larger than the sum of its proper divisors (20908469).

252392881 is a wasteful number, since it uses less digits than its factorization.

252392881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493475 (or 1493462 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 252392881 is about 15886.8776353316. The cubic root of 252392881 is about 631.9640403417.

The spelling of 252392881 in words is "two hundred fifty-two million, three hundred ninety-two thousand, eight hundred eighty-one".