825118226 has 16 divisors (see below), whose sum is σ = 1244286360. Its totient is φ = 410361600.

The previous prime is 825118219. The next prime is 825118253. The reversal of 825118226 is 622811528.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 280596001 + 544522225 = 16751^2 + 23335^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645500 + ... + 646776.

Almost surely, 2^825118226 is an apocalyptic number.

825118226 is a deficient number, since it is larger than the sum of its proper divisors (419168134).

825118226 is a wasteful number, since it uses less digits than its factorization.

825118226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2749.

The product of its digits is 15360, while the sum is 35.

The square root of 825118226 is about 28724.8712094589. The cubic root of 825118226 is about 937.9335266881.

The spelling of 825118226 in words is "eight hundred twenty-five million, one hundred eighteen thousand, two hundred twenty-six".