91325517 has 8 divisors (see below), whose sum is σ = 121811520. Its totient is φ = 60861600.

The previous prime is 91325497. The next prime is 91325551. The reversal of 91325517 is 71552319.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91325517 - 2⁷ = 91325389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91325567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13209 + ... + 18897.

It is an arithmetic number, because the mean of its divisors is an integer number (15226440).

Almost surely, 2^91325517 is an apocalyptic number.

It is an amenable number.

91325517 is a deficient number, since it is larger than the sum of its proper divisors (30486003).

91325517 is a wasteful number, since it uses less digits than its factorization.

91325517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11043.

The product of its digits is 9450, while the sum is 33.

The square root of 91325517 is about 9556.4385102401. The cubic root of 91325517 is about 450.3298273299.

The spelling of 91325517 in words is "ninety-one million, three hundred twenty-five thousand, five hundred seventeen".