506565513 has 12 divisors (see below), whose sum is σ = 755309568. Its totient is φ = 326816280.

The previous prime is 506565511. The next prime is 506565529. The reversal of 506565513 is 315565605.

506565513 is a `hidden beast` number, since 50 + 6 + 56 + 551 + 3 = 666.

It is not a de Polignac number, because 506565513 - 2¹ = 506565511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (506565511) 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, 907545 + ... + 908102.

It is an arithmetic number, because the mean of its divisors is an integer number (62942464).

Almost surely, 2^506565513 is an apocalyptic number.

It is an amenable number.

506565513 is a deficient number, since it is larger than the sum of its proper divisors (248744055).

506565513 is a wasteful number, since it uses less digits than its factorization.

506565513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815684 (or 1815681 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The square root of 506565513 is about 22507.0103079018. The cubic root of 506565513 is about 797.1594641531.

It can be divided in two parts, 50656 and 5513, that added together give a square (56169 = 237²).

The spelling of 506565513 in words is "five hundred six million, five hundred sixty-five thousand, five hundred thirteen".