506649517 has 12 divisors (see below), whose sum is σ = 572435136. Its totient is φ = 444699920.

The previous prime is 506649491. The next prime is 506649529. The reversal of 506649517 is 715946605.

It is not a de Polignac number, because 506649517 - 2⁷ = 506649389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506649817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18133 + ... + 36634.

It is an arithmetic number, because the mean of its divisors is an integer number (47702928).

Almost surely, 2^506649517 is an apocalyptic number.

It is an amenable number.

506649517 is a deficient number, since it is larger than the sum of its proper divisors (65785619).

506649517 is a wasteful number, since it uses less digits than its factorization.

506649517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54836 (or 54807 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 506649517 is about 22508.8764046542. The cubic root of 506649517 is about 797.2035261620.

The spelling of 506649517 in words is "five hundred six million, six hundred forty-nine thousand, five hundred seventeen".