83172575 has 12 divisors (see below), whose sum is σ = 103256040. Its totient is φ = 66459360.

The previous prime is 83172569. The next prime is 83172599. The reversal of 83172575 is 57527138.

It is a happy number.

It is not a de Polignac number, because 83172575 - 2⁶ = 83172511 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29372 + ... + 32078.

It is an arithmetic number, because the mean of its divisors is an integer number (8604670).

Almost surely, 2^83172575 is an apocalyptic number.

83172575 is a deficient number, since it is larger than the sum of its proper divisors (20083465).

83172575 is a wasteful number, since it uses less digits than its factorization.

83172575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3946 (or 3941 counting only the distinct ones).

The product of its digits is 58800, while the sum is 38.

The square root of 83172575 is about 9119.8999446266. The cubic root of 83172575 is about 436.5091808860.

The spelling of 83172575 in words is "eighty-three million, one hundred seventy-two thousand, five hundred seventy-five".