225971910 has 128 divisors (see below), whose sum is σ = 625968000. Its totient is φ = 57968640.

The previous prime is 225971897. The next prime is 225971929. The reversal of 225971910 is 19179522.

225971910 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1516516 + ... + 1516664.

It is an arithmetic number, because the mean of its divisors is an integer number (4890375).

Almost surely, 2^225971910 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225971910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312984000).

225971910 is an abundant number, since it is smaller than the sum of its proper divisors (399996090).

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

225971910 is a wasteful number, since it uses less digits than its factorization.

225971910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 225971910 is about 15032.3620898380. The cubic root of 225971910 is about 609.0946975942.

The spelling of 225971910 in words is "two hundred twenty-five million, nine hundred seventy-one thousand, nine hundred ten".