5180639 has 4 divisors (see below), whose sum is σ = 5192880. Its totient is φ = 5168400.

The previous prime is 5180621. The next prime is 5180653. The reversal of 5180639 is 9360815.

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

It is a cyclic number.

It is not a de Polignac number, because 5180639 - 2¹² = 5176543 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 (5180839) 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, 5462 + ... + 6339.

It is an arithmetic number, because the mean of its divisors is an integer number (1298220).

Almost surely, 2^5180639 is an apocalyptic number.

5180639 is a deficient number, since it is larger than the sum of its proper divisors (12241).

5180639 is a wasteful number, since it uses less digits than its factorization.

5180639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12240.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 5180639 is about 2276.1017112598. The cubic root of 5180639 is about 173.0325375667.

The spelling of 5180639 in words is "five million, one hundred eighty thousand, six hundred thirty-nine".