252780530000 has 100 divisors (see below), whose sum is σ = 633111355140. Its totient is φ = 97625472000.

The previous prime is 252780529993. The next prime is 252780530027. The reversal of 252780530000 is 35087252.

252780530000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 10 ways, for example, as 198334841104 + 54445688896 = 445348^2 + 233336^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 145829 + ... + 725828.

Almost surely, 2^252780530000 is an apocalyptic number.

252780530000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252780530000 is an abundant number, since it is smaller than the sum of its proper divisors (380330825140).

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

252780530000 is an equidigital number, since it uses as much as digits as its factorization.

252780530000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871714 (or 871693 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The spelling of 252780530000 in words is "two hundred fifty-two billion, seven hundred eighty million, five hundred thirty thousand".