82455540 has 48 divisors (see below), whose sum is σ = 231286272. Its totient is φ = 21949056.

The previous prime is 82455523. The next prime is 82455577. The reversal of 82455540 is 4555428.

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, 51837 + ... + 53403.

It is an arithmetic number, because the mean of its divisors is an integer number (4818464).

Almost surely, 2^82455540 is an apocalyptic number.

It is an amenable number.

82455540 is an abundant number, since it is smaller than the sum of its proper divisors (148830732).

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

82455540 is a wasteful number, since it uses less digits than its factorization.

82455540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2456 (or 2454 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 33.

The square root of 82455540 is about 9080.5032900165. The cubic root of 82455540 is about 435.2511695191.

The spelling of 82455540 in words is "eighty-two million, four hundred fifty-five thousand, five hundred forty".