252242453240 has 16 divisors (see below), whose sum is σ = 567545519880. Its totient is φ = 100896981280.

The previous prime is 252242453231. The next prime is 252242453257. The reversal of 252242453240 is 42354242252.

It is a self number, because there is not a number n which added to its sum of digits gives 252242453240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3153030626 + ... + 3153030705.

Almost surely, 2^252242453240 is an apocalyptic number.

252242453240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252242453240 is an abundant number, since it is smaller than the sum of its proper divisors (315303066640).

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

252242453240 is a wasteful number, since it uses less digits than its factorization.

252242453240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6306061342 (or 6306061338 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 35.

Adding to 252242453240 its reverse (42354242252), we get a palindrome (294596695492).

The spelling of 252242453240 in words is "two hundred fifty-two billion, two hundred forty-two million, four hundred fifty-three thousand, two hundred forty".