252220325 has 12 divisors (see below), whose sum is σ = 357432480. Its totient is φ = 172950960.

The previous prime is 252220321. The next prime is 252220357. The reversal of 252220325 is 523022252.

It is a happy number.

It is not a de Polignac number, because 252220325 - 2² = 252220321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252220325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252220321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 720455 + ... + 720804.

It is an arithmetic number, because the mean of its divisors is an integer number (29786040).

Almost surely, 2^252220325 is an apocalyptic number.

252220325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252220325 is a deficient number, since it is larger than the sum of its proper divisors (105212155).

252220325 is a wasteful number, since it uses less digits than its factorization.

252220325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441276 (or 1441271 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 252220325 is about 15881.4459354304. The cubic root of 252220325 is about 631.8199870869.

Adding to 252220325 its reverse (523022252), we get a palindrome (775242577).

The spelling of 252220325 in words is "two hundred fifty-two million, two hundred twenty thousand, three hundred twenty-five".