82155759 has 16 divisors (see below), whose sum is σ = 128244480. Its totient is φ = 45800640.

The previous prime is 82155751. The next prime is 82155779. The reversal of 82155759 is 95755128.

It is not a de Polignac number, because 82155759 - 2³ = 82155751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82155759.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82155751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46849 + ... + 48570.

It is an arithmetic number, because the mean of its divisors is an integer number (8015280).

Almost surely, 2^82155759 is an apocalyptic number.

82155759 is a deficient number, since it is larger than the sum of its proper divisors (46088721).

82155759 is a wasteful number, since it uses less digits than its factorization.

82155759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95470.

The product of its digits is 126000, while the sum is 42.

The square root of 82155759 is about 9063.9814099545. The cubic root of 82155759 is about 434.7230526762.

The spelling of 82155759 in words is "eighty-two million, one hundred fifty-five thousand, seven hundred fifty-nine".