83173825 has 36 divisors (see below), whose sum is σ = 122841840. Its totient is φ = 55671840.

The previous prime is 83173823. The next prime is 83173829. The reversal of 83173825 is 52837138.

It is not a de Polignac number, because 83173825 - 2¹ = 83173823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83173823) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 51886 + ... + 53464.

Almost surely, 2^83173825 is an apocalyptic number.

It is an amenable number.

83173825 is a deficient number, since it is larger than the sum of its proper divisors (39668015).

83173825 is a wasteful number, since it uses less digits than its factorization.

83173825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646 (or 1634 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 83173825 is about 9119.9684758227. The cubic root of 83173825 is about 436.5113676395.

The spelling of 83173825 in words is "eighty-three million, one hundred seventy-three thousand, eight hundred twenty-five".