252522797525 has 6 divisors (see below), whose sum is σ = 313128268962. Its totient is φ = 202018238000.

The previous prime is 252522797509. The next prime is 252522797537. The reversal of 252522797525 is 525797225252.

252522797525 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 3 ways, for example, as 48631716676 + 203891080849 = 220526^2 + 451543^2 .

It is not a de Polignac number, because 252522797525 - 2⁴ = 252522797509 is a prime.

It is a super-2 number, since 2×252522797525² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

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 5 ways as a sum of consecutive naturals, for example, 5050455926 + ... + 5050455975.

It is an arithmetic number, because the mean of its divisors is an integer number (52188044827).

Almost surely, 2^252522797525 is an apocalyptic number.

252522797525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252522797525 is a deficient number, since it is larger than the sum of its proper divisors (60605471437).

252522797525 is a wasteful number, since it uses less digits than its factorization.

252522797525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100911911 (or 10100911906 counting only the distinct ones).

The product of its digits is 8820000, while the sum is 53.

The spelling of 252522797525 in words is "two hundred fifty-two billion, five hundred twenty-two million, seven hundred ninety-seven thousand, five hundred twenty-five".