91065625 has 48 divisors (see below), whose sum is σ = 136491264. Its totient is φ = 59400000.

The previous prime is 91065593. The next prime is 91065641. The reversal of 91065625 is 52656019.

It is a happy number.

It is not a de Polignac number, because 91065625 - 2⁵ = 91065593 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 503035 + ... + 503215.

It is an arithmetic number, because the mean of its divisors is an integer number (2843568).

Almost surely, 2^91065625 is an apocalyptic number.

It is an amenable number.

91065625 is a deficient number, since it is larger than the sum of its proper divisors (45425639).

91065625 is an equidigital number, since it uses as much as digits as its factorization.

91065625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 91065625 is about 9542.8310788780. The cubic root of 91065625 is about 449.9022421391.

The spelling of 91065625 in words is "ninety-one million, sixty-five thousand, six hundred twenty-five".