225651745371 has 16 divisors (see below), whose sum is σ = 324315921440. Its totient is φ = 138732687360.

The previous prime is 225651745367. The next prime is 225651745379. The reversal of 225651745371 is 173547156522.

It is not a de Polignac number, because 225651745371 - 2² = 225651745367 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225651745371.

It is not an unprimeable number, because it can be changed into a prime (225651745379) 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, 2664550 + ... + 2747931.

It is an arithmetic number, because the mean of its divisors is an integer number (20269745090).

Almost surely, 2^225651745371 is an apocalyptic number.

225651745371 is a deficient number, since it is larger than the sum of its proper divisors (98664176069).

225651745371 is a wasteful number, since it uses less digits than its factorization.

225651745371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5413566.

The product of its digits is 1764000, while the sum is 48.

The spelling of 225651745371 in words is "two hundred twenty-five billion, six hundred fifty-one million, seven hundred forty-five thousand, three hundred seventy-one".