82555730 has 16 divisors (see below), whose sum is σ = 150134040. Its totient is φ = 32681472.

The previous prime is 82555709. The next prime is 82555771. The reversal of 82555730 is 3755528.

It can be written as a sum of positive squares in 4 ways, for example, as 61606801 + 20948929 = 7849^2 + 4577^2 .

It is a Curzon number.

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, 41585 + ... + 43524.

Almost surely, 2^82555730 is an apocalyptic number.

82555730 is a deficient number, since it is larger than the sum of its proper divisors (67578310).

82555730 is a wasteful number, since it uses less digits than its factorization.

82555730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85213.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 82555730 is about 9086.0183799066. The cubic root of 82555730 is about 435.4273863598.

The spelling of 82555730 in words is "eighty-two million, five hundred fifty-five thousand, seven hundred thirty".