91825063 has 16 divisors (see below), whose sum is σ = 102654720. Its totient is φ = 81432000.

The previous prime is 91825057. The next prime is 91825079. The reversal of 91825063 is 36052819.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91825063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91825003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97531 + ... + 98467.

It is an arithmetic number, because the mean of its divisors is an integer number (6415920).

Almost surely, 2^91825063 is an apocalyptic number.

91825063 is a deficient number, since it is larger than the sum of its proper divisors (10829657).

91825063 is a wasteful number, since it uses less digits than its factorization.

91825063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 91825063 is about 9582.5394859609. The cubic root of 91825063 is about 451.1494286092.

The spelling of 91825063 in words is "ninety-one million, eight hundred twenty-five thousand, sixty-three".