82018500 has 48 divisors (see below), whose sum is σ = 238842240. Its totient is φ = 21871200.

The previous prime is 82018499. The next prime is 82018513. The reversal of 82018500 is 581028.

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, 25840 + ... + 28839.

It is an arithmetic number, because the mean of its divisors is an integer number (4975880).

Almost surely, 2^82018500 is an apocalyptic number.

It is an amenable number.

82018500 is an abundant number, since it is smaller than the sum of its proper divisors (156823740).

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

82018500 is a wasteful number, since it uses less digits than its factorization.

82018500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54701 (or 54689 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 82018500 is about 9056.4065721455. The cubic root of 82018500 is about 434.4808180337.

Adding to 82018500 its reverse (581028), we get a palindrome (82599528).

The spelling of 82018500 in words is "eighty-two million, eighteen thousand, five hundred".