15090225 has 12 divisors (see below), whose sum is σ = 24949296. Its totient is φ = 8048080.

The previous prime is 15090223. The next prime is 15090227. The reversal of 15090225 is 52209051.

It is an interprime number because it is at equal distance from previous prime (15090223) and next prime (15090227).

It is not a de Polignac number, because 15090225 - 2¹ = 15090223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15090195 and 15090204.

It is not an unprimeable number, because it can be changed into a prime (15090223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100527 + ... + 100676.

It is an arithmetic number, because the mean of its divisors is an integer number (2079108).

Almost surely, 2^15090225 is an apocalyptic number.

15090225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15090225 is a deficient number, since it is larger than the sum of its proper divisors (9859071).

15090225 is a wasteful number, since it uses less digits than its factorization.

15090225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201216 (or 201211 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 15090225 is about 3884.6138804262. The cubic root of 15090225 is about 247.1146948303.

Adding to 15090225 its reverse (52209051), we get a palindrome (67299276).

The spelling of 15090225 in words is "fifteen million, ninety thousand, two hundred twenty-five".