252781233 has 8 divisors (see below), whose sum is σ = 337747200. Its totient is φ = 168168048.

The previous prime is 252781213. The next prime is 252781237. The reversal of 252781233 is 332187252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 252781233 - 2⁶ = 252781169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252781194 and 252781203.

It is not an unprimeable number, because it can be changed into a prime (252781237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86518 + ... + 89391.

It is an arithmetic number, because the mean of its divisors is an integer number (42218400).

Almost surely, 2^252781233 is an apocalyptic number.

It is an amenable number.

252781233 is a deficient number, since it is larger than the sum of its proper divisors (84965967).

252781233 is a wasteful number, since it uses less digits than its factorization.

252781233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176391.

The product of its digits is 20160, while the sum is 33.

The square root of 252781233 is about 15899.0953516230. The cubic root of 252781233 is about 632.2880044843.

The spelling of 252781233 in words is "two hundred fifty-two million, seven hundred eighty-one thousand, two hundred thirty-three".