225161677 has 4 divisors (see below), whose sum is σ = 242481820. Its totient is φ = 207841536.

The previous prime is 225161669. The next prime is 225161681. The reversal of 225161677 is 776161522.

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

It can be written as a sum of positive squares in 2 ways, for example, as 61168041 + 163993636 = 7821^2 + 12806^2 .

It is a cyclic number.

It is not a de Polignac number, because 225161677 - 2³ = 225161669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225161177) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 8660052 + ... + 8660077.

It is an arithmetic number, because the mean of its divisors is an integer number (60620455).

Almost surely, 2^225161677 is an apocalyptic number.

It is an amenable number.

225161677 is a deficient number, since it is larger than the sum of its proper divisors (17320143).

225161677 is a wasteful number, since it uses less digits than its factorization.

225161677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17320142.

The product of its digits is 35280, while the sum is 37.

The square root of 225161677 is about 15005.3882655531. The cubic root of 225161677 is about 608.3658464806.

The spelling of 225161677 in words is "two hundred twenty-five million, one hundred sixty-one thousand, six hundred seventy-seven".