501616039 has 4 divisors (see below), whose sum is σ = 523425456. Its totient is φ = 479806624.

The previous prime is 501616021. The next prime is 501616043. The reversal of 501616039 is 930616105.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 501616039 - 2¹¹ = 501613991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 501616039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501616139) 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 3 ways as a sum of consecutive naturals, for example, 10904674 + ... + 10904719.

It is an arithmetic number, because the mean of its divisors is an integer number (130856364).

Almost surely, 2^501616039 is an apocalyptic number.

501616039 is a deficient number, since it is larger than the sum of its proper divisors (21809417).

501616039 is a wasteful number, since it uses less digits than its factorization.

501616039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21809416.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 501616039 is about 22396.7863542965. The cubic root of 501616039 is about 794.5547070536.

The spelling of 501616039 in words is "five hundred one million, six hundred sixteen thousand, thirty-nine".