500091091 has 12 divisors (see below), whose sum is σ = 533241808. Its totient is φ = 468899712.

The previous prime is 500091083. The next prime is 500091107. The reversal of 500091091 is 190190005.

It is not a de Polignac number, because 500091091 - 2³ = 500091083 is a prime.

It is a super-3 number, since 3×500091091³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (500091041) by changing a digit.

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, 76930 + ... + 83176.

Almost surely, 2^500091091 is an apocalyptic number.

500091091 is a deficient number, since it is larger than the sum of its proper divisors (33150717).

500091091 is a wasteful number, since it uses less digits than its factorization.

500091091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6558 (or 6541 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 25.

The square root of 500091091 is about 22362.7165389181. The cubic root of 500091091 is about 793.7487223738.

The spelling of 500091091 in words is "five hundred million, ninety-one thousand, ninety-one".