501616105 has 4 divisors (see below), whose sum is σ = 601939332. Its totient is φ = 401292880.

The previous prime is 501616097. The next prime is 501616121.

501616105 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in 2 ways, for example, as 64304361 + 437311744 = 8019^2 + 20912^2 .

It is not a de Polignac number, because 501616105 - 2³ = 501616097 is a prime.

It is an alternating number because its digits alternate between odd and even.

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 501616105.

It is an unprimeable number.

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, 50161606 + ... + 50161615.

It is an arithmetic number, because the mean of its divisors is an integer number (150484833).

Almost surely, 2^501616105 is an apocalyptic number.

It is an amenable number.

501616105 is a deficient number, since it is larger than the sum of its proper divisors (100323227).

501616105 is a wasteful number, since it uses less digits than its factorization.

501616105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100323226.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 501616105 is about 22396.7878277221. The cubic root of 501616105 is about 794.5547419014.

The spelling of 501616105 in words is "five hundred one million, six hundred sixteen thousand, one hundred five".