225661516250 has 40 divisors (see below), whose sum is σ = 436624535424. Its totient is φ = 87352830000.

The previous prime is 225661516247. The next prime is 225661516303. The reversal of 225661516250 is 52615166522.

It is a junction number, because it is equal to n+sod(n) for n = 225661516198 and 225661516207.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2873012 + ... + 2950511.

Almost surely, 2^225661516250 is an apocalyptic number.

225661516250 is a deficient number, since it is larger than the sum of its proper divisors (210963019174).

225661516250 is an equidigital number, since it uses as much as digits as its factorization.

225661516250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5823576 (or 5823561 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 225661516250 in words is "two hundred twenty-five billion, six hundred sixty-one million, five hundred sixteen thousand, two hundred fifty".