252731322 has 24 divisors (see below), whose sum is σ = 547896960. Its totient is φ = 84195720.

The previous prime is 252731321. The next prime is 252731341. The reversal of 252731322 is 223137252.

It is a happy number.

252731322 is a `hidden beast` number, since 2 + 527 + 3 + 132 + 2 = 666.

252731322 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×252731322² = 127746242239735368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (252731321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43929 + ... + 49347.

It is an arithmetic number, because the mean of its divisors is an integer number (22829040).

Almost surely, 2^252731322 is an apocalyptic number.

252731322 is an abundant number, since it is smaller than the sum of its proper divisors (295165638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252731322 is a wasteful number, since it uses less digits than its factorization.

252731322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8018 (or 8015 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 252731322 is about 15897.5256565291. The cubic root of 252731322 is about 632.2463872019.

Adding to 252731322 its reverse (223137252), we get a palindrome (475868574).

The spelling of 252731322 in words is "two hundred fifty-two million, seven hundred thirty-one thousand, three hundred twenty-two".