499980565 has 24 divisors (see below), whose sum is σ = 714178080. Its totient is φ = 334863648.

The previous prime is 499980563. The next prime is 499980571. The reversal of 499980565 is 565089994.

It is a happy number.

It is not a de Polignac number, because 499980565 - 2¹ = 499980563 is a prime.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499980563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13195 + ... + 34264.

It is an arithmetic number, because the mean of its divisors is an integer number (29757420).

Almost surely, 2^499980565 is an apocalyptic number.

It is an amenable number.

499980565 is a deficient number, since it is larger than the sum of its proper divisors (214197515).

499980565 is a wasteful number, since it uses less digits than its factorization.

499980565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47521 (or 47514 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 55.

The square root of 499980565 is about 22360.2451909634. The cubic root of 499980565 is about 793.6902421377.

The spelling of 499980565 in words is "four hundred ninety-nine million, nine hundred eighty thousand, five hundred sixty-five".