91525560 has 64 divisors (see below), whose sum is σ = 313804800. Its totient is φ = 20919936.

The previous prime is 91525549. The next prime is 91525589. The reversal of 91525560 is 6552519.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 53640 + ... + 55319.

It is an arithmetic number, because the mean of its divisors is an integer number (4903200).

Almost surely, 2^91525560 is an apocalyptic number.

It is an amenable number.

91525560 is an abundant number, since it is smaller than the sum of its proper divisors (222279240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91525560 is a wasteful number, since it uses less digits than its factorization.

91525560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108980 (or 108976 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 91525560 is about 9566.8991841662. The cubic root of 91525560 is about 450.6583942593.

The spelling of 91525560 in words is "ninety-one million, five hundred twenty-five thousand, five hundred sixty".