225261145156 has 12 divisors (see below), whose sum is σ = 394716979692. Its totient is φ = 112484865248.

The previous prime is 225261145147. The next prime is 225261145163. The reversal of 225261145156 is 651541162522.

It can be written as a sum of positive squares in 2 ways, for example, as 135854165056 + 89406980100 = 368584^2 + 299010^2 .

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, 36423355 + ... + 36429538.

It is an arithmetic number, because the mean of its divisors is an integer number (32893081641).

Almost surely, 2^225261145156 is an apocalyptic number.

It is an amenable number.

225261145156 is a deficient number, since it is larger than the sum of its proper divisors (169455834536).

225261145156 is a wasteful number, since it uses less digits than its factorization.

225261145156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72853670 (or 72853668 counting only the distinct ones).

The product of its digits is 144000, while the sum is 40.

The spelling of 225261145156 in words is "two hundred twenty-five billion, two hundred sixty-one million, one hundred forty-five thousand, one hundred fifty-six".