82500555803 has 4 divisors (see below), whose sum is σ = 82501630368. Its totient is φ = 82499481240.

The previous prime is 82500555791. The next prime is 82500555821. The reversal of 82500555803 is 30855500528.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82500555803 - 2²⁰ = 82499507227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82500555703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412451 + ... + 578892.

It is an arithmetic number, because the mean of its divisors is an integer number (20625407592).

Almost surely, 2^82500555803 is an apocalyptic number.

82500555803 is a deficient number, since it is larger than the sum of its proper divisors (1074565).

82500555803 is an equidigital number, since it uses as much as digits as its factorization.

82500555803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074564.

The product of its (nonzero) digits is 240000, while the sum is 41.

The spelling of 82500555803 in words is "eighty-two billion, five hundred million, five hundred fifty-five thousand, eight hundred three".