91365560 has 64 divisors (see below), whose sum is σ = 241526880. Its totient is φ = 30666240.

The previous prime is 91365541. The next prime is 91365577. The reversal of 91365560 is 6556319.

It is a super-2 number, since 2×91365560² = 16695331108227200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 91365560.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2267 + ... + 13706.

Almost surely, 2^91365560 is an apocalyptic number.

It is an amenable number.

91365560 is an abundant number, since it is smaller than the sum of its proper divisors (150161320).

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

91365560 is a wasteful number, since it uses less digits than its factorization.

91365560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16008 (or 16004 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 91365560 is about 9558.5333603017. The cubic root of 91365560 is about 450.3956355982.

The spelling of 91365560 in words is "ninety-one million, three hundred sixty-five thousand, five hundred sixty".