252777752525 has 24 divisors (see below), whose sum is σ = 327463360200. Its totient is φ = 193315808000.

The previous prime is 252777752483. The next prime is 252777752543. The reversal of 252777752525 is 525257777252.

It can be written as a sum of positive squares in 12 ways, for example, as 8754596356 + 244023156169 = 93566^2 + 493987^2 .

It is not a de Polignac number, because 252777752525 - 2¹² = 252777748429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1652810 + ... + 1799259.

It is an arithmetic number, because the mean of its divisors is an integer number (13644306675).

Almost surely, 2^252777752525 is an apocalyptic number.

252777752525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252777752525 is a deficient number, since it is larger than the sum of its proper divisors (74685607675).

252777752525 is a wasteful number, since it uses less digits than its factorization.

252777752525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3452209 (or 3452204 counting only the distinct ones).

The product of its digits is 24010000, while the sum is 56.

The spelling of 252777752525 in words is "two hundred fifty-two billion, seven hundred seventy-seven million, seven hundred fifty-two thousand, five hundred twenty-five".