225617224774 has 4 divisors (see below), whose sum is σ = 338425837164. Its totient is φ = 112808612386.

The previous prime is 225617224753. The next prime is 225617224793. The reversal of 225617224774 is 477422716522.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×225617224774² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56404306192 + ... + 56404306195.

It is an arithmetic number, because the mean of its divisors is an integer number (84606459291).

Almost surely, 2^225617224774 is an apocalyptic number.

225617224774 is a deficient number, since it is larger than the sum of its proper divisors (112808612390).

225617224774 is a wasteful number, since it uses less digits than its factorization.

225617224774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112808612389.

The product of its digits is 2634240, while the sum is 49.

The spelling of 225617224774 in words is "two hundred twenty-five billion, six hundred seventeen million, two hundred twenty-four thousand, seven hundred seventy-four".