82505203 has 8 divisors (see below), whose sum is σ = 93109680. Its totient is φ = 72418080.

The previous prime is 82505197. The next prime is 82505219. The reversal of 82505203 is 30250528.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82505203 - 2²¹ = 80408051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82535203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129000 + ... + 129637.

It is an arithmetic number, because the mean of its divisors is an integer number (11638710).

Almost surely, 2^82505203 is an apocalyptic number.

82505203 is a deficient number, since it is larger than the sum of its proper divisors (10604477).

82505203 is a wasteful number, since it uses less digits than its factorization.

82505203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258677.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 82505203 is about 9083.2374735003. The cubic root of 82505203 is about 435.3385359574.

The spelling of 82505203 in words is "eighty-two million, five hundred five thousand, two hundred three".