225686755 has 16 divisors (see below), whose sum is σ = 317064384. Its totient is φ = 150981120.

The previous prime is 225686749. The next prime is 225686767. The reversal of 225686755 is 557686522.

It is not a de Polignac number, because 225686755 - 2⁷ = 225686627 is a prime.

It is a super-2 number, since 2×225686755² = 101869022764860050, which 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 in 15 ways as a sum of consecutive naturals, for example, 77202 + ... + 80071.

It is an arithmetic number, because the mean of its divisors is an integer number (19816524).

Almost surely, 2^225686755 is an apocalyptic number.

225686755 is a deficient number, since it is larger than the sum of its proper divisors (91377629).

225686755 is a wasteful number, since it uses less digits than its factorization.

225686755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157326.

The product of its digits is 1008000, while the sum is 46.

The square root of 225686755 is about 15022.8743920729. The cubic root of 225686755 is about 608.8383832757.

The spelling of 225686755 in words is "two hundred twenty-five million, six hundred eighty-six thousand, seven hundred fifty-five".