5539541639 has 4 divisors (see below), whose sum is σ = 5541074256. Its totient is φ = 5538009024.

The previous prime is 5539541629. The next prime is 5539541653. The reversal of 5539541639 is 9361459355.

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 5539541639 - 2¹² = 5539537543 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 (5539541629) 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, 760874 + ... + 768119.

It is an arithmetic number, because the mean of its divisors is an integer number (1385268564).

Almost surely, 2^5539541639 is an apocalyptic number.

5539541639 is a deficient number, since it is larger than the sum of its proper divisors (1532617).

5539541639 is a wasteful number, since it uses less digits than its factorization.

5539541639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532616.

The product of its digits is 2187000, while the sum is 50.

The square root of 5539541639 is about 74428.0971072081. The cubic root of 5539541639 is about 1769.3942450313.

The spelling of 5539541639 in words is "five billion, five hundred thirty-nine million, five hundred forty-one thousand, six hundred thirty-nine".