225641630 has 8 divisors (see below), whose sum is σ = 406154952. Its totient is φ = 90256648.

The previous prime is 225641609. The next prime is 225641671. The reversal of 225641630 is 36146522.

225641630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 225641593 and 225641602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11282072 + ... + 11282091.

It is an arithmetic number, because the mean of its divisors is an integer number (50769369).

Almost surely, 2^225641630 is an apocalyptic number.

225641630 is a deficient number, since it is larger than the sum of its proper divisors (180513322).

225641630 is a wasteful number, since it uses less digits than its factorization.

225641630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22564170.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 225641630 is about 15021.3724406261. The cubic root of 225641630 is about 608.7978024519.

The spelling of 225641630 in words is "two hundred twenty-five million, six hundred forty-one thousand, six hundred thirty".