252013525 has 12 divisors (see below), whose sum is σ = 330879492. Its totient is φ = 189751040.

The previous prime is 252013501. The next prime is 252013589. The reversal of 252013525 is 525310252.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 35070084 + 216943441 = 5922^2 + 14729^2 .

It is not a de Polignac number, because 252013525 - 2¹³ = 252005333 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 252013525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 296062 + ... + 296911.

It is an arithmetic number, because the mean of its divisors is an integer number (27573291).

Almost surely, 2^252013525 is an apocalyptic number.

252013525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252013525 is a deficient number, since it is larger than the sum of its proper divisors (78865967).

252013525 is a wasteful number, since it uses less digits than its factorization.

252013525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593000 (or 592995 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 252013525 is about 15874.9338581299. The cubic root of 252013525 is about 631.6472596645.

Adding to 252013525 its reverse (525310252), we get a palindrome (777323777).

The spelling of 252013525 in words is "two hundred fifty-two million, thirteen thousand, five hundred twenty-five".