5539613857 has 4 divisors (see below), whose sum is σ = 5541509376. Its totient is φ = 5537718340.

The previous prime is 5539613819. The next prime is 5539613867. The reversal of 5539613857 is 7583169355.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7583169355 = 5 ⋅1516633871.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5539613857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5539613867) 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, 943369 + ... + 949222.

It is an arithmetic number, because the mean of its divisors is an integer number (1385377344).

Almost surely, 2^5539613857 is an apocalyptic number.

It is an amenable number.

5539613857 is a deficient number, since it is larger than the sum of its proper divisors (1895519).

5539613857 is a wasteful number, since it uses less digits than its factorization.

5539613857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895518.

The product of its digits is 3402000, while the sum is 52.

The square root of 5539613857 is about 74428.5822584308. The cubic root of 5539613857 is about 1769.4019340886.

The spelling of 5539613857 in words is "five billion, five hundred thirty-nine million, six hundred thirteen thousand, eight hundred fifty-seven".