225651444249 has 24 divisors (see below), whose sum is σ = 377950632640. Its totient is φ = 117221528160.

The previous prime is 225651444229. The next prime is 225651444259. The reversal of 225651444249 is 942444156522.

It is not a de Polignac number, because 225651444249 - 2¹⁵ = 225651411481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225651444198 and 225651444207.

It is not an unprimeable number, because it can be changed into a prime (225651444229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44399554 + ... + 44404635.

Almost surely, 2^225651444249 is an apocalyptic number.

It is an amenable number.

225651444249 is a deficient number, since it is larger than the sum of its proper divisors (152299188391).

225651444249 is a wasteful number, since it uses less digits than its factorization.

225651444249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88804221 (or 88804210 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 48.

The spelling of 225651444249 in words is "two hundred twenty-five billion, six hundred fifty-one million, four hundred forty-four thousand, two hundred forty-nine".