225715 has 8 divisors (see below), whose sum is σ = 309600. Its totient is φ = 154752.

The previous prime is 225697. The next prime is 225721. The reversal of 225715 is 517522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225715 - 2⁵ = 225683 is a prime.

It is a super-2 number, since 2×225715² = 101894522450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3190 + ... + 3259.

It is an arithmetic number, because the mean of its divisors is an integer number (38700).

2²²⁵⁷¹⁵ is an apocalyptic number.

225715 is a deficient number, since it is larger than the sum of its proper divisors (83885).

225715 is an equidigital number, since it uses as much as digits as its factorization.

225715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6461.

The product of its digits is 700, while the sum is 22.

The square root of 225715 is about 475.0947273965. The cubic root of 225715 is about 60.8863781196.

The spelling of 225715 in words is "two hundred twenty-five thousand, seven hundred fifteen".