508801081 has 4 divisors (see below), whose sum is σ = 508846672. Its totient is φ = 508755492.

The previous prime is 508801067. The next prime is 508801091. The reversal of 508801081 is 180108805.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 508801081 - 2⁵ = 508801049 is a prime.

It is a super-2 number, since 2×508801081² = 517757080053537122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (508801091) 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, 6466 + ... + 32548.

It is an arithmetic number, because the mean of its divisors is an integer number (127211668).

Almost surely, 2^508801081 is an apocalyptic number.

It is an amenable number.

508801081 is a deficient number, since it is larger than the sum of its proper divisors (45591).

508801081 is a wasteful number, since it uses less digits than its factorization.

508801081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45590.

The product of its (nonzero) digits is 2560, while the sum is 31.

The square root of 508801081 is about 22556.6194497314. The cubic root of 508801081 is about 798.3304143830.

Adding to 508801081 its reverse (180108805), we get a palindrome (688909886).

The spelling of 508801081 in words is "five hundred eight million, eight hundred one thousand, eighty-one".