82512825 has 12 divisors (see below), whose sum is σ = 136421328. Its totient is φ = 44006800.

The previous prime is 82512823. The next prime is 82512827. The reversal of 82512825 is 52821528.

It is an interprime number because it is at equal distance from previous prime (82512823) and next prime (82512827).

It is not a de Polignac number, because 82512825 - 2¹ = 82512823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82512823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 550011 + ... + 550160.

It is an arithmetic number, because the mean of its divisors is an integer number (11368444).

Almost surely, 2^82512825 is an apocalyptic number.

It is an amenable number.

82512825 is a deficient number, since it is larger than the sum of its proper divisors (53908503).

82512825 is a wasteful number, since it uses less digits than its factorization.

82512825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100184 (or 1100179 counting only the distinct ones).

The product of its digits is 12800, while the sum is 33.

The square root of 82512825 is about 9083.6570278715. The cubic root of 82512825 is about 435.3519413671.

The spelling of 82512825 in words is "eighty-two million, five hundred twelve thousand, eight hundred twenty-five".