83325665 has 16 divisors (see below), whose sum is σ = 107163648. Its totient is φ = 62035776.

The previous prime is 83325643. The next prime is 83325673. The reversal of 83325665 is 56652338.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 83325665 - 2⁶ = 83325601 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5537 + ... + 14046.

It is an arithmetic number, because the mean of its divisors is an integer number (6697728).

Almost surely, 2^83325665 is an apocalyptic number.

It is an amenable number.

83325665 is a deficient number, since it is larger than the sum of its proper divisors (23837983).

83325665 is a wasteful number, since it uses less digits than its factorization.

83325665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19648.

The product of its digits is 129600, while the sum is 38.

The square root of 83325665 is about 9128.2892701754. The cubic root of 83325665 is about 436.7768341448.

The spelling of 83325665 in words is "eighty-three million, three hundred twenty-five thousand, six hundred sixty-five".