506791111 has 16 divisors (see below), whose sum is σ = 524966400. Its totient is φ = 489028320.

The previous prime is 506791099. The next prime is 506791127. The reversal of 506791111 is 111197605.

It is a cyclic number.

It is not a de Polignac number, because 506791111 - 2²³ = 498402503 is a prime.

It is a super-2 number, since 2×506791111² = 513674460377228642, 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 (506795111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1007286 + ... + 1007788.

It is an arithmetic number, because the mean of its divisors is an integer number (32810400).

Almost surely, 2^506791111 is an apocalyptic number.

506791111 is a deficient number, since it is larger than the sum of its proper divisors (18175289).

506791111 is a wasteful number, since it uses less digits than its factorization.

506791111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846.

The product of its (nonzero) digits is 1890, while the sum is 31.

The square root of 506791111 is about 22512.0214774240. The cubic root of 506791111 is about 797.2777844137.

The spelling of 506791111 in words is "five hundred six million, seven hundred ninety-one thousand, one hundred eleven".