506314681 has 4 divisors (see below), whose sum is σ = 512003700. Its totient is φ = 500625664.

The previous prime is 506314639. The next prime is 506314733. The reversal of 506314681 is 186413605.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27405225 + 478909456 = 5235^2 + 21884^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506314681 is a prime.

It is a super-2 number, since 2×506314681² = 512709112392263522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506314181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2844376 + ... + 2844553.

It is an arithmetic number, because the mean of its divisors is an integer number (128000925).

Almost surely, 2^506314681 is an apocalyptic number.

It is an amenable number.

506314681 is a deficient number, since it is larger than the sum of its proper divisors (5689019).

506314681 is an equidigital number, since it uses as much as digits as its factorization.

506314681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5689018.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 506314681 is about 22501.4373096476. The cubic root of 506314681 is about 797.0278680681.

The spelling of 506314681 in words is "five hundred six million, three hundred fourteen thousand, six hundred eighty-one".