225865190 has 16 divisors (see below), whose sum is σ = 407227392. Its totient is φ = 90197184.

The previous prime is 225865183. The next prime is 225865193. The reversal of 225865190 is 91568522.

It is a super-2 number, since 2×225865190² = 102030168107472200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225865193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12134 + ... + 24473.

It is an arithmetic number, because the mean of its divisors is an integer number (25451712).

Almost surely, 2^225865190 is an apocalyptic number.

225865190 is a deficient number, since it is larger than the sum of its proper divisors (181362202).

225865190 is a wasteful number, since it uses less digits than its factorization.

225865190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37231.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 225865190 is about 15028.8119956303. The cubic root of 225865190 is about 608.9987965568.

The spelling of 225865190 in words is "two hundred twenty-five million, eight hundred sixty-five thousand, one hundred ninety".