5563691879 has 2 divisors, whose sum is σ = 5563691880. Its totient is φ = 5563691878.

The previous prime is 5563691857. The next prime is 5563691897. The reversal of 5563691879 is 9781963655.

Together with next prime (5563691897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5563691879 - 2¹² = 5563687783 is a prime.

It is a super-5 number, since 5×5563691879⁵ (a number of 50 digits) contains 55555 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5563691899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2781845939 + 2781845940.

It is an arithmetic number, because the mean of its divisors is an integer number (2781845940).

Almost surely, 2^5563691879 is an apocalyptic number.

5563691879 is a deficient number, since it is larger than the sum of its proper divisors (1).

5563691879 is an equidigital number, since it uses as much as digits as its factorization.

5563691879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12247200, while the sum is 59.

The square root of 5563691879 is about 74590.1593978723. The cubic root of 5563691879 is about 1771.9618069440.

The spelling of 5563691879 in words is "five billion, five hundred sixty-three million, six hundred ninety-one thousand, eight hundred seventy-nine".