83171825 has 12 divisors (see below), whose sum is σ = 112509168. Its totient is φ = 60488400.

The previous prime is 83171773. The next prime is 83171827. The reversal of 83171825 is 52817138.

It is not a de Polignac number, because 83171825 - 2¹⁸ = 82909681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83171827) 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, 150947 + ... + 151496.

It is an arithmetic number, because the mean of its divisors is an integer number (9375764).

Almost surely, 2^83171825 is an apocalyptic number.

It is an amenable number.

83171825 is a deficient number, since it is larger than the sum of its proper divisors (29337343).

83171825 is a wasteful number, since it uses less digits than its factorization.

83171825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302464 (or 302459 counting only the distinct ones).

The product of its digits is 13440, while the sum is 35.

The square root of 83171825 is about 9119.8588256617. The cubic root of 83171825 is about 436.5078688235.

The spelling of 83171825 in words is "eighty-three million, one hundred seventy-one thousand, eight hundred twenty-five".