225045870 has 96 divisors (see below), whose sum is σ = 634604544. Its totient is φ = 50011200.

The previous prime is 225045853. The next prime is 225045889. The reversal of 225045870 is 78540522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1490295 + ... + 1490445.

It is an arithmetic number, because the mean of its divisors is an integer number (6610464).

Almost surely, 2^225045870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225045870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317302272).

225045870 is an abundant number, since it is smaller than the sum of its proper divisors (409558674).

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

225045870 is a wasteful number, since it uses less digits than its factorization.

225045870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 225045870 is about 15001.5289220799. The cubic root of 225045870 is about 608.2615286905.

The spelling of 225045870 in words is "two hundred twenty-five million, forty-five thousand, eight hundred seventy".