5563987 has 24 divisors (see below), whose sum is σ = 6825168. Its totient is φ = 4492800.

The previous prime is 5563951. The next prime is 5563991. The reversal of 5563987 is 7893655.

It is a de Polignac number, because none of the positive numbers 2^k-5563987 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5563927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76183 + ... + 76255.

It is an arithmetic number, because the mean of its divisors is an integer number (284382).

Almost surely, 2^5563987 is an apocalyptic number.

5563987 is a deficient number, since it is larger than the sum of its proper divisors (1261181).

5563987 is a wasteful number, since it uses less digits than its factorization.

5563987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 138 counting only the distinct ones).

The product of its digits is 226800, while the sum is 43.

The square root of 5563987 is about 2358.8105053183. The cubic root of 5563987 is about 177.1993137093.

The spelling of 5563987 in words is "five million, five hundred sixty-three thousand, nine hundred eighty-seven".