82556266 has 16 divisors (see below), whose sum is σ = 133827624. Its totient is φ = 37969344.

The previous prime is 82556219. The next prime is 82556297. The reversal of 82556266 is 66265528.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 65950641 + 16605625 = 8121^2 + 4075^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2200 + ... + 13036.

Almost surely, 2^82556266 is an apocalyptic number.

82556266 is a deficient number, since it is larger than the sum of its proper divisors (51271358).

82556266 is a wasteful number, since it uses less digits than its factorization.

82556266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11145.

The product of its digits is 172800, while the sum is 40.

The square root of 82556266 is about 9086.0478757268. The cubic root of 82556266 is about 435.4283287074.

The spelling of 82556266 in words is "eighty-two million, five hundred fifty-six thousand, two hundred sixty-six".