5531663 has 16 divisors (see below), whose sum is σ = 6026400. Its totient is φ = 5066880.

The previous prime is 5531657. The next prime is 5531677. The reversal of 5531663 is 3661355.

It is not a de Polignac number, because 5531663 - 2⁶ = 5531599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5531623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90653 + ... + 90713.

It is an arithmetic number, because the mean of its divisors is an integer number (376650).

Almost surely, 2^5531663 is an apocalyptic number.

5531663 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

5531663 is a deficient number, since it is larger than the sum of its proper divisors (494737).

5531663 is a wasteful number, since it uses less digits than its factorization.

5531663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202.

The product of its digits is 8100, while the sum is 29.

The square root of 5531663 is about 2351.9487664488. The cubic root of 5531663 is about 176.8555003954.

The spelling of 5531663 in words is "five million, five hundred thirty-one thousand, six hundred sixty-three".