82158582 has 32 divisors (see below), whose sum is σ = 182202624. Its totient is φ = 24487200.

The previous prime is 82158529. The next prime is 82158607. The reversal of 82158582 is 28585128.

It is a self number, because there is not a number n which added to its sum of digits gives 82158582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6178 + ... + 14229.

It is an arithmetic number, because the mean of its divisors is an integer number (5693832).

Almost surely, 2^82158582 is an apocalyptic number.

82158582 is an abundant number, since it is smaller than the sum of its proper divisors (100044042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82158582 is a wasteful number, since it uses less digits than its factorization.

82158582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20484.

The product of its digits is 51200, while the sum is 39.

The square root of 82158582 is about 9064.1371348849. The cubic root of 82158582 is about 434.7280318732.

The spelling of 82158582 in words is "eighty-two million, one hundred fifty-eight thousand, five hundred eighty-two".