252781288 has 16 divisors (see below), whose sum is σ = 474202080. Its totient is φ = 126327408.

The previous prime is 252781283. The next prime is 252781289. The reversal of 252781288 is 882187252.

It is not an unprimeable number, because it can be changed into a prime (252781283) 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, 12045 + ... + 25507.

It is an arithmetic number, because the mean of its divisors is an integer number (29637630).

Almost surely, 2^252781288 is an apocalyptic number.

It is an amenable number.

252781288 is a deficient number, since it is larger than the sum of its proper divisors (221420792).

252781288 is a wasteful number, since it uses less digits than its factorization.

252781288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15816 (or 15812 counting only the distinct ones).

The product of its digits is 143360, while the sum is 43.

The square root of 252781288 is about 15899.0970812811. The cubic root of 252781288 is about 632.2880503419.

The spelling of 252781288 in words is "two hundred fifty-two million, seven hundred eighty-one thousand, two hundred eighty-eight".