225126566474 has 4 divisors (see below), whose sum is σ = 337689849714. Its totient is φ = 112563283236.

The previous prime is 225126566473. The next prime is 225126566491. The reversal of 225126566474 is 474665621522.

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

It can be written as a sum of positive squares in only one way, i.e., 190737460225 + 34389106249 = 436735^2 + 185443^2 .

It is not an unprimeable number, because it can be changed into a prime (225126566471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56281641617 + ... + 56281641620.

Almost surely, 2^225126566474 is an apocalyptic number.

225126566474 is a deficient number, since it is larger than the sum of its proper divisors (112563283240).

225126566474 is a wasteful number, since it uses less digits than its factorization.

225126566474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112563283239.

The product of its digits is 4838400, while the sum is 50.

The spelling of 225126566474 in words is "two hundred twenty-five billion, one hundred twenty-six million, five hundred sixty-six thousand, four hundred seventy-four".