5556787663 has 4 divisors (see below), whose sum is σ = 6350614480. Its totient is φ = 4762960848.

The previous prime is 5556787601. The next prime is 5556787669. The reversal of 5556787663 is 3667876555.

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 5556787663 - 2²⁵ = 5523233231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5556787598 and 5556787607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5556787669) 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, 396913398 + ... + 396913411.

It is an arithmetic number, because the mean of its divisors is an integer number (1587653620).

Almost surely, 2^5556787663 is an apocalyptic number.

5556787663 is a deficient number, since it is larger than the sum of its proper divisors (793826817).

5556787663 is an equidigital number, since it uses as much as digits as its factorization.

5556787663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793826816.

The product of its digits is 31752000, while the sum is 58.

The square root of 5556787663 is about 74543.8640197837. The cubic root of 5556787663 is about 1771.2285365797.

The spelling of 5556787663 in words is "five billion, five hundred fifty-six million, seven hundred eighty-seven thousand, six hundred sixty-three".