91335625 has 20 divisors (see below), whose sum is σ = 114741396. Its totient is φ = 72680000.

The previous prime is 91335619. The next prime is 91335653. The reversal of 91335625 is 52653319.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 89643024 + 1692601 = 9468^2 + 1301^2 .

It is not a de Polignac number, because 91335625 - 2⁹ = 91335113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 197895 + ... + 198355.

Almost surely, 2^91335625 is an apocalyptic number.

It is an amenable number.

91335625 is a deficient number, since it is larger than the sum of its proper divisors (23405771).

91335625 is an equidigital number, since it uses as much as digits as its factorization.

91335625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798 (or 783 counting only the distinct ones).

The product of its digits is 24300, while the sum is 34.

The square root of 91335625 is about 9556.9673537163. The cubic root of 91335625 is about 450.3464410363.

The spelling of 91335625 in words is "ninety-one million, three hundred thirty-five thousand, six hundred twenty-five".