225994989706 has 4 divisors (see below), whose sum is σ = 338992484562. Its totient is φ = 112997494852.

The previous prime is 225994989587. The next prime is 225994989707. The reversal of 225994989706 is 607989499522.

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., 131156244025 + 94838745681 = 362155^2 + 307959^2 .

It is not an unprimeable number, because it can be changed into a prime (225994989707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56498747425 + ... + 56498747428.

Almost surely, 2^225994989706 is an apocalyptic number.

225994989706 is a deficient number, since it is larger than the sum of its proper divisors (112997494856).

225994989706 is a wasteful number, since it uses less digits than its factorization.

225994989706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112997494855.

The product of its (nonzero) digits is 176359680, while the sum is 70.

The spelling of 225994989706 in words is "two hundred twenty-five billion, nine hundred ninety-four million, nine hundred eighty-nine thousand, seven hundred six".