501566113 has 4 divisors (see below), whose sum is σ = 531070020. Its totient is φ = 472062208.

The previous prime is 501566111. The next prime is 501566203. The reversal of 501566113 is 311665105.

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 452327824 + 49238289 = 21268^2 + 7017^2 .

It is a cyclic number.

It is not a de Polignac number, because 501566113 - 2¹ = 501566111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501566111) 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, 14751928 + ... + 14751961.

It is an arithmetic number, because the mean of its divisors is an integer number (132767505).

Almost surely, 2^501566113 is an apocalyptic number.

It is an amenable number.

501566113 is a deficient number, since it is larger than the sum of its proper divisors (29503907).

501566113 is a wasteful number, since it uses less digits than its factorization.

501566113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29503906.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 501566113 is about 22395.6717470140. The cubic root of 501566113 is about 794.5283454201.

The spelling of 501566113 in words is "five hundred one million, five hundred sixty-six thousand, one hundred thirteen".