252043636452 has 12 divisors (see below), whose sum is σ = 588101818416. Its totient is φ = 84014545480.

The previous prime is 252043636421. The next prime is 252043636459. The reversal of 252043636452 is 254636340252.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (252043636459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10501818174 + ... + 10501818197.

It is an arithmetic number, because the mean of its divisors is an integer number (49008484868).

Almost surely, 2^252043636452 is an apocalyptic number.

It is an amenable number.

252043636452 is an abundant number, since it is smaller than the sum of its proper divisors (336058181964).

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

252043636452 is a wasteful number, since it uses less digits than its factorization.

252043636452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21003636378 (or 21003636376 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 42.

The spelling of 252043636452 in words is "two hundred fifty-two billion, forty-three million, six hundred thirty-six thousand, four hundred fifty-two".