225970 has 16 divisors (see below), whose sum is σ = 414720. Its totient is φ = 88624.

The previous prime is 225961. The next prime is 225977. The reversal of 225970 is 79522.

225970 is nontrivially palindromic in base 6.

It is not an unprimeable number, because it can be changed into a prime (225977) by changing a digit.

225970 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399 + ... + 781.

It is an arithmetic number, because the mean of its divisors is an integer number (25920).

2²²⁵⁹⁷⁰ is an apocalyptic number.

225970 is a deficient number, since it is larger than the sum of its proper divisors (188750).

225970 is a wasteful number, since it uses less digits than its factorization.

225970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 225970 is about 475.3630191759. The cubic root of 225970 is about 60.9092981490.

The spelling of 225970 in words is "two hundred twenty-five thousand, nine hundred seventy".