252225250 has 16 divisors (see below), whose sum is σ = 472166136. Its totient is φ = 100890000.

The previous prime is 252225223. The next prime is 252225257. The reversal of 252225250 is 52522252.

It can be written as a sum of positive squares in 4 ways, for example, as 47706649 + 204518601 = 6907^2 + 14301^2 .

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

It is not an unprimeable number, because it can be changed into a prime (252225257) 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 7 ways as a sum of consecutive naturals, for example, 504201 + ... + 504700.

Almost surely, 2^252225250 is an apocalyptic number.

252225250 is a deficient number, since it is larger than the sum of its proper divisors (219940886).

252225250 is a wasteful number, since it uses less digits than its factorization.

252225250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008918 (or 1008908 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 252225250 is about 15881.6009898247. The cubic root of 252225250 is about 631.8240994877.

It can be divided in two parts, 2522 and 25250, that added together give a palindrome (27772).

The spelling of 252225250 in words is "two hundred fifty-two million, two hundred twenty-five thousand, two hundred fifty".