225823170 has 32 divisors (see below), whose sum is σ = 570502080. Its totient is φ = 57049920.

The previous prime is 225823139. The next prime is 225823181. The reversal of 225823170 is 71328522.

It is a super-2 number, since 2×225823170² = 101992208217697800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 197521 + ... + 198660.

It is an arithmetic number, because the mean of its divisors is an integer number (17828190).

Almost surely, 2^225823170 is an apocalyptic number.

225823170 is an abundant number, since it is smaller than the sum of its proper divisors (344678910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225823170 is a wasteful number, since it uses less digits than its factorization.

225823170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396210.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 225823170 is about 15027.4139491797. The cubic root of 225823170 is about 608.9610281332.

It can be divided in two parts, 22582 and 3170, that added together give a palindrome (25752).

The spelling of 225823170 in words is "two hundred twenty-five million, eight hundred twenty-three thousand, one hundred seventy".