508091 has 2 divisors, whose sum is σ = 508092. Its totient is φ = 508090.

The previous prime is 508087. The next prime is 508097. The reversal of 508091 is 190805.

Added to its reverse (190805) it gives a square (698896 = 836²).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 508091 - 2² = 508087 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (508097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254045 + 254046.

It is an arithmetic number, because the mean of its divisors is an integer number (254046).

2⁵⁰⁸⁰⁹¹ is an apocalyptic number.

508091 is a deficient number, since it is larger than the sum of its proper divisors (1).

508091 is an equidigital number, since it uses as much as digits as its factorization.

508091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 508091 is about 712.8050224290. The cubic root of 508091 is about 79.7958859109.

Adding to 508091 its reverse (190805), we get a palindrome (698896).

It can be divided in two parts, 50 and 8091, that multiplied together give a triangular number (404550 = T₈₉₉).

The spelling of 508091 in words is "five hundred eight thousand, ninety-one".