252530277525 has 18 divisors (see below), whose sum is σ = 452309786370. Its totient is φ = 134682814560.

The previous prime is 252530277499. The next prime is 252530277529. The reversal of 252530277525 is 525772035252.

252530277525 is a `hidden beast` number, since 2 + 5 + 2 + 53 + 0 + 2 + 77 + 525 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 599564196 + 251930713329 = 24486^2 + 501927^2 .

It is not a de Polignac number, because 252530277525 - 2¹¹ = 252530275477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252530277529) 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 17 ways as a sum of consecutive naturals, for example, 561178170 + ... + 561178619.

It is an arithmetic number, because the mean of its divisors is an integer number (25128321465).

Almost surely, 2^252530277525 is an apocalyptic number.

252530277525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252530277525 is a deficient number, since it is larger than the sum of its proper divisors (199779508845).

252530277525 is a wasteful number, since it uses less digits than its factorization.

252530277525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122356805 (or 1122356797 counting only the distinct ones).

The product of its (nonzero) digits is 1470000, while the sum is 45.

The spelling of 252530277525 in words is "two hundred fifty-two billion, five hundred thirty million, two hundred seventy-seven thousand, five hundred twenty-five".