5563665 has 12 divisors (see below), whose sum is σ = 9643764. Its totient is φ = 2967264.

The previous prime is 5563661. The next prime is 5563669. The reversal of 5563665 is 5663655.

It is a happy number.

5563665 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (5563661) and next prime (5563669).

It can be written as a sum of positive squares in 2 ways, for example, as 1065024 + 4498641 = 1032^2 + 2121^2 .

It is not a de Polignac number, because 5563665 - 2² = 5563661 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (5563661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61774 + ... + 61863.

It is an arithmetic number, because the mean of its divisors is an integer number (803647).

Almost surely, 2^5563665 is an apocalyptic number.

It is an amenable number.

5563665 is a deficient number, since it is larger than the sum of its proper divisors (4080099).

5563665 is a wasteful number, since it uses less digits than its factorization.

5563665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123648 (or 123645 counting only the distinct ones).

The product of its digits is 81000, while the sum is 36.

The square root of 5563665 is about 2358.7422495898. The cubic root of 5563665 is about 177.1958953405.

The spelling of 5563665 in words is "five million, five hundred sixty-three thousand, six hundred sixty-five".