508260861 has 12 divisors (see below), whose sum is σ = 745112992. Its totient is φ = 333782856.

The previous prime is 508260847. The next prime is 508260871. The reversal of 508260861 is 168062805.

It is a happy number.

It is not a de Polignac number, because 508260861 - 2⁷ = 508260733 is a prime.

It is a super-2 number, since 2×508260861² = 516658205648922642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (508260871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 420841 + ... + 422046.

Almost surely, 2^508260861 is an apocalyptic number.

It is an amenable number.

508260861 is a deficient number, since it is larger than the sum of its proper divisors (236852131).

508260861 is a wasteful number, since it uses less digits than its factorization.

508260861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842960 (or 842957 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 508260861 is about 22544.6415141159. The cubic root of 508260861 is about 798.0477716516.

The spelling of 508260861 in words is "five hundred eight million, two hundred sixty thousand, eight hundred sixty-one".