225651444250 has 32 divisors (see below), whose sum is σ = 429579184320. Its totient is φ = 88730731600.

The previous prime is 225651444229. The next prime is 225651444259. The reversal of 225651444250 is 52444156522.

It is a super-2 number, since 2×225651444250² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225651444259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7634452 + ... + 7663951.

It is an arithmetic number, because the mean of its divisors is an integer number (13424349510).

Almost surely, 2^225651444250 is an apocalyptic number.

225651444250 is a deficient number, since it is larger than the sum of its proper divisors (203927740070).

225651444250 is a wasteful number, since it uses less digits than its factorization.

225651444250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15298479 (or 15298469 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 40.

The spelling of 225651444250 in words is "two hundred twenty-five billion, six hundred fifty-one million, four hundred forty-four thousand, two hundred fifty".