91457625 has 32 divisors (see below), whose sum is σ = 173931264. Its totient is φ = 41808000.

The previous prime is 91457609. The next prime is 91457647. The reversal of 91457625 is 52675419.

It is not a de Polignac number, because 91457625 - 2⁴ = 91457609 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 14796 + ... + 20045.

It is an arithmetic number, because the mean of its divisors is an integer number (5435352).

Almost surely, 2^91457625 is an apocalyptic number.

It is an amenable number.

91457625 is a deficient number, since it is larger than the sum of its proper divisors (82473639).

91457625 is a wasteful number, since it uses less digits than its factorization.

91457625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34866 (or 34856 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The square root of 91457625 is about 9563.3480016153. The cubic root of 91457625 is about 450.5468660118.

The spelling of 91457625 in words is "ninety-one million, four hundred fifty-seven thousand, six hundred twenty-five".