506161605 has 32 divisors (see below), whose sum is σ = 832946688. Its totient is φ = 262310400.

The previous prime is 506161597. The next prime is 506161619.

506161605 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 506161605 - 2³ = 506161597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165147 + ... + 168183.

It is an arithmetic number, because the mean of its divisors is an integer number (26029584).

Almost surely, 2^506161605 is an apocalyptic number.

It is an amenable number.

506161605 is a deficient number, since it is larger than the sum of its proper divisors (326785083).

506161605 is a wasteful number, since it uses less digits than its factorization.

506161605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3357.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 506161605 is about 22498.0355809124. The cubic root of 506161605 is about 796.9475371724.

It can be divided in two parts, 5061 and 61605, that added together give a palindrome (66666).

The spelling of 506161605 in words is "five hundred six million, one hundred sixty-one thousand, six hundred five".