499999501 has 4 divisors (see below), whose sum is σ = 500111392. Its totient is φ = 499887612.

The previous prime is 499999499. The next prime is 499999517. The reversal of 499999501 is 105999994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 499999501 - 2¹ = 499999499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499939501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48951 + ... + 58276.

It is an arithmetic number, because the mean of its divisors is an integer number (125027848).

Almost surely, 2^499999501 is an apocalyptic number.

It is an amenable number.

499999501 is a deficient number, since it is larger than the sum of its proper divisors (111891).

499999501 is a wasteful number, since it uses less digits than its factorization.

499999501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111890.

The product of its (nonzero) digits is 1180980, while the sum is 55.

The square root of 499999501 is about 22360.6686170159. The cubic root of 499999501 is about 793.7002619463.

It can be divided in two parts, 499999 and 501, that added together give a triangular number (500500 = T₁₀₀₀).

The spelling of 499999501 in words is "four hundred ninety-nine million, nine hundred ninety-nine thousand, five hundred one".