83280555 has 40 divisors (see below), whose sum is σ = 151780464. Its totient is φ = 43675200.

The previous prime is 83280541. The next prime is 83280559. The reversal of 83280555 is 55508238.

83280555 is a `hidden beast` number, since 83 + 28 + 0 + 555 = 666.

It is not a de Polignac number, because 83280555 - 2⁵ = 83280523 is a prime.

It is a super-2 number, since 2×83280555² = 13871301682216050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83280559) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23020 + ... + 26390.

Almost surely, 2^83280555 is an apocalyptic number.

83280555 is a deficient number, since it is larger than the sum of its proper divisors (68499909).

83280555 is a wasteful number, since it uses less digits than its factorization.

83280555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3449 (or 3440 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 83280555 is about 9125.8180455234. The cubic root of 83280555 is about 436.6980006521.

The spelling of 83280555 in words is "eighty-three million, two hundred eighty thousand, five hundred fifty-five".