5665479139 has 4 divisors (see below), whose sum is σ = 5665941000. Its totient is φ = 5665017280.

The previous prime is 5665479133. The next prime is 5665479167. The reversal of 5665479139 is 9319745665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9319745665 = 5 ⋅1863949133.

It is a cyclic number.

It is not a de Polignac number, because 5665479139 - 2⁵ = 5665479107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5665479139.

It is not an unprimeable number, because it can be changed into a prime (5665479133) 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, 212014 + ... + 237235.

It is an arithmetic number, because the mean of its divisors is an integer number (1416485250).

Almost surely, 2^5665479139 is an apocalyptic number.

5665479139 is a deficient number, since it is larger than the sum of its proper divisors (461861).

5665479139 is a wasteful number, since it uses less digits than its factorization.

5665479139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461860.

The product of its digits is 6123600, while the sum is 55.

The square root of 5665479139 is about 75269.3771662819. The cubic root of 5665479139 is about 1782.7025330959.

It can be divided in two parts, 566 and 5479139, that added together give a triangular number (5479705 = T₃₃₁₀).

The spelling of 5665479139 in words is "five billion, six hundred sixty-five million, four hundred seventy-nine thousand, one hundred thirty-nine".