83685025 has 12 divisors (see below), whose sum is σ = 109231600. Its totient is φ = 63424080.

The previous prime is 83685011. The next prime is 83685029. The reversal of 83685025 is 52058638.

It is not a de Polignac number, because 83685025 - 2¹³ = 83676833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83685029) 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, 87615 + ... + 88564.

Almost surely, 2^83685025 is an apocalyptic number.

It is an amenable number.

83685025 is a deficient number, since it is larger than the sum of its proper divisors (25546575).

83685025 is a wasteful number, since it uses less digits than its factorization.

83685025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176208 (or 176203 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 83685025 is about 9147.9519565857. The cubic root of 83685025 is about 437.4038319238.

The spelling of 83685025 in words is "eighty-three million, six hundred eighty-five thousand, twenty-five".