225015 has 16 divisors (see below), whose sum is σ = 411648. Its totient is φ = 102816.

The previous prime is 224993. The next prime is 225023. The reversal of 225015 is 510522.

It is not a de Polignac number, because 225015 - 2⁶ = 224951 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 224985 and 225003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 967 + ... + 1176.

It is an arithmetic number, because the mean of its divisors is an integer number (25728).

2²²⁵⁰¹⁵ is an apocalyptic number.

225015 is a deficient number, since it is larger than the sum of its proper divisors (186633).

225015 is a wasteful number, since it uses less digits than its factorization.

225015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 225015 is about 474.3574601500. The cubic root of 225015 is about 60.8233715261.

Adding to 225015 its reverse (510522), we get a palindrome (735537).

The spelling of 225015 in words is "two hundred twenty-five thousand, fifteen".