91612525 has 12 divisors (see below), whose sum is σ = 113953024. Its totient is φ = 73062000.

The previous prime is 91612513. The next prime is 91612531. The reversal of 91612525 is 52521619.

It is not a de Polignac number, because 91612525 - 2¹³ = 91604333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2740 + ... + 13810.

Almost surely, 2^91612525 is an apocalyptic number.

It is an amenable number.

91612525 is a deficient number, since it is larger than the sum of its proper divisors (22340499).

91612525 is a wasteful number, since it uses less digits than its factorization.

91612525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11412 (or 11407 counting only the distinct ones).

The product of its digits is 5400, while the sum is 31.

The square root of 91612525 is about 9571.4432036135. The cubic root of 91612525 is about 450.8010833650.

The spelling of 91612525 in words is "ninety-one million, six hundred twelve thousand, five hundred twenty-five".