15025225 has 12 divisors (see below), whose sum is σ = 18888796. Its totient is φ = 11854080.

The previous prime is 15025217. The next prime is 15025237. The reversal of 15025225 is 52252051.

It can be written as a sum of positive squares in 6 ways, for example, as 1089936 + 13935289 = 1044^2 + 3733^2 .

It is not a de Polignac number, because 15025225 - 2³ = 15025217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15025196 and 15025205.

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, 2292 + ... + 5941.

Almost surely, 2^15025225 is an apocalyptic number.

It is an amenable number.

15025225 is a deficient number, since it is larger than the sum of its proper divisors (3863571).

15025225 is an equidigital number, since it uses as much as digits as its factorization.

15025225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8316 (or 8311 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 15025225 is about 3876.2385117534. The cubic root of 15025225 is about 246.7593748994.

Adding to 15025225 its reverse (52252051), we get a palindrome (67277276).

The spelling of 15025225 in words is "fifteen million, twenty-five thousand, two hundred twenty-five".