91248825 has 24 divisors (see below), whose sum is σ = 151329600. Its totient is φ = 48516160.

The previous prime is 91248799. The next prime is 91248827. The reversal of 91248825 is 52884219.

It is not a de Polignac number, because 91248825 - 2⁵ = 91248793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91248827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25231 + ... + 28619.

It is an arithmetic number, because the mean of its divisors is an integer number (6305400).

Almost surely, 2^91248825 is an apocalyptic number.

It is an amenable number.

91248825 is a deficient number, since it is larger than the sum of its proper divisors (60080775).

91248825 is a wasteful number, since it uses less digits than its factorization.

91248825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3761 (or 3756 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The square root of 91248825 is about 9552.4250847625. The cubic root of 91248825 is about 450.2037349068.

The spelling of 91248825 in words is "ninety-one million, two hundred forty-eight thousand, eight hundred twenty-five".