499505481 has 8 divisors (see below), whose sum is σ = 740008160. Its totient is φ = 333003636.

The previous prime is 499505473. The next prime is 499505491. The reversal of 499505481 is 184505994.

It is not a de Polignac number, because 499505481 - 2³ = 499505473 is a prime.

It is a super-2 number, since 2×499505481² = 499011451098082722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499505411) 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, 9250075 + ... + 9250128.

It is an arithmetic number, because the mean of its divisors is an integer number (92501020).

Almost surely, 2^499505481 is an apocalyptic number.

It is an amenable number.

499505481 is a deficient number, since it is larger than the sum of its proper divisors (240502679).

499505481 is a wasteful number, since it uses less digits than its factorization.

499505481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18500212 (or 18500206 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 499505481 is about 22349.6192585019. The cubic root of 499505481 is about 793.4387730103.

The spelling of 499505481 in words is "four hundred ninety-nine million, five hundred five thousand, four hundred eighty-one".