5515863663 has 4 divisors (see below), whose sum is σ = 7354484888. Its totient is φ = 3677242440.

The previous prime is 5515863643. The next prime is 5515863677. The reversal of 5515863663 is 3663685155.

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

It is not a de Polignac number, because 5515863663 - 2¹⁴ = 5515847279 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 (5515863643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919310608 + ... + 919310613.

It is an arithmetic number, because the mean of its divisors is an integer number (1838621222).

Almost surely, 2^5515863663 is an apocalyptic number.

5515863663 is a deficient number, since it is larger than the sum of its proper divisors (1838621225).

5515863663 is a wasteful number, since it uses less digits than its factorization.

5515863663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838621224.

The product of its digits is 1944000, while the sum is 48.

The square root of 5515863663 is about 74268.8606550552. The cubic root of 5515863663 is about 1766.8696372987.

The spelling of 5515863663 in words is "five billion, five hundred fifteen million, eight hundred sixty-three thousand, six hundred sixty-three".