225580385138 has 4 divisors (see below), whose sum is σ = 338370577710. Its totient is φ = 112790192568.

The previous prime is 225580385119. The next prime is 225580385197. The reversal of 225580385138 is 831583085522.

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., 223045564729 + 2534820409 = 472277^2 + 50347^2 .

It is a super-2 number, since 2×225580385138² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56395096283 + ... + 56395096286.

Almost surely, 2^225580385138 is an apocalyptic number.

225580385138 is a deficient number, since it is larger than the sum of its proper divisors (112790192572).

225580385138 is a wasteful number, since it uses less digits than its factorization.

225580385138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112790192571.

The product of its (nonzero) digits is 2304000, while the sum is 50.

The spelling of 225580385138 in words is "two hundred twenty-five billion, five hundred eighty million, three hundred eighty-five thousand, one hundred thirty-eight".