508242805 has 16 divisors (see below), whose sum is σ = 697428864. Its totient is φ = 348304320.

The previous prime is 508242803. The next prime is 508242817.

508242805 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 508242805 - 2¹ = 508242803 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 (508242803) 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 15 ways as a sum of consecutive naturals, for example, 78834 + ... + 85036.

It is an arithmetic number, because the mean of its divisors is an integer number (43589304).

Almost surely, 2^508242805 is an apocalyptic number.

It is an amenable number.

508242805 is a deficient number, since it is larger than the sum of its proper divisors (189186059).

508242805 is a wasteful number, since it uses less digits than its factorization.

508242805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8556.

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 508242805 is about 22544.2410606345. The cubic root of 508242805 is about 798.0383213068.

The spelling of 508242805 in words is "five hundred eight million, two hundred forty-two thousand, eight hundred five".