83221256 has 16 divisors (see below), whose sum is σ = 165218940. Its totient is φ = 39162880.

The previous prime is 83221181. The next prime is 83221261. The reversal of 83221256 is 65212238.

It can be written as a sum of positive squares in 2 ways, for example, as 80102500 + 3118756 = 8950^2 + 1766^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305825 + ... + 306096.

Almost surely, 2^83221256 is an apocalyptic number.

It is an amenable number.

83221256 is a deficient number, since it is larger than the sum of its proper divisors (81997684).

83221256 is a wasteful number, since it uses less digits than its factorization.

83221256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611944 (or 611940 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 83221256 is about 9122.5684979615. The cubic root of 83221256 is about 436.5943273780.

The spelling of 83221256 in words is "eighty-three million, two hundred twenty-one thousand, two hundred fifty-six".