82503013 has 6 divisors (see below), whose sum is σ = 82866182. Its totient is φ = 82141320.

The previous prime is 82503011. The next prime is 82503017. The reversal of 82503013 is 31030528.

It can be written as a sum of positive squares in only one way, i.e., 51165409 + 31337604 = 7153^2 + 5598^2 .

It is not a de Polignac number, because 82503013 - 2¹ = 82503011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82503011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 96295 + ... + 97147.

Almost surely, 2^82503013 is an apocalyptic number.

It is an amenable number.

82503013 is a deficient number, since it is larger than the sum of its proper divisors (363169).

82503013 is an frugal number, since it uses more digits than its factorization.

82503013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475 (or 1164 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 82503013 is about 9083.1169209694. The cubic root of 82503013 is about 435.3346840798.

The spelling of 82503013 in words is "eighty-two million, five hundred three thousand, thirteen".