506551313 has 4 divisors (see below), whose sum is σ = 507888240. Its totient is φ = 505214388.

The previous prime is 506551271. The next prime is 506551361. The reversal of 506551313 is 313155605.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 506551313 - 2¹⁴ = 506534929 is a prime.

It is a super-3 number, since 3×506551313³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506551373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667895 + ... + 668652.

It is an arithmetic number, because the mean of its divisors is an integer number (126972060).

Almost surely, 2^506551313 is an apocalyptic number.

It is an amenable number.

506551313 is a deficient number, since it is larger than the sum of its proper divisors (1336927).

506551313 is a wasteful number, since it uses less digits than its factorization.

506551313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336926.

The product of its (nonzero) digits is 6750, while the sum is 29.

The square root of 506551313 is about 22506.6948484223. The cubic root of 506551313 is about 797.1520154488.

The spelling of 506551313 in words is "five hundred six million, five hundred fifty-one thousand, three hundred thirteen".