252505525 has 6 divisors (see below), whose sum is σ = 313106882. Its totient is φ = 202004400.

The previous prime is 252505507. The next prime is 252505531. The reversal of 252505525 is 525505252.

It can be written as a sum of positive squares in 3 ways, for example, as 46267204 + 206238321 = 6802^2 + 14361^2 .

It is not a de Polignac number, because 252505525 - 2⁷ = 252505397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5050086 + ... + 5050135.

Almost surely, 2^252505525 is an apocalyptic number.

252505525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252505525 is a deficient number, since it is larger than the sum of its proper divisors (60601357).

252505525 is a wasteful number, since it uses less digits than its factorization.

252505525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100231 (or 10100226 counting only the distinct ones).

The product of its (nonzero) digits is 25000, while the sum is 31.

The square root of 252505525 is about 15890.4224298789. The cubic root of 252505525 is about 632.0580424247.

The spelling of 252505525 in words is "two hundred fifty-two million, five hundred five thousand, five hundred twenty-five".