506480639 has 4 divisors (see below), whose sum is σ = 578835024. Its totient is φ = 434126256.

The previous prime is 506480627. The next prime is 506480641. The reversal of 506480639 is 936084605.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 936084605 = 5 ⋅187216921.

It is a cyclic number.

It is not a de Polignac number, because 506480639 - 2¹⁶ = 506415103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 506480596 and 506480605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506480659) 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, 36177182 + ... + 36177195.

It is an arithmetic number, because the mean of its divisors is an integer number (144708756).

Almost surely, 2^506480639 is an apocalyptic number.

506480639 is a deficient number, since it is larger than the sum of its proper divisors (72354385).

506480639 is an equidigital number, since it uses as much as digits as its factorization.

506480639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72354384.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 506480639 is about 22505.1247274926. The cubic root of 506480639 is about 797.1149408620.

The spelling of 506480639 in words is "five hundred six million, four hundred eighty thousand, six hundred thirty-nine".