5663557 has 4 divisors (see below), whose sum is σ = 5701216. Its totient is φ = 5625900.

The previous prime is 5663549. The next prime is 5663561. The reversal of 5663557 is 7553665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5663557 - 2³ = 5663549 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 (5663597) 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, 18603 + ... + 18904.

It is an arithmetic number, because the mean of its divisors is an integer number (1425304).

Almost surely, 2^5663557 is an apocalyptic number.

It is an amenable number.

5663557 is a deficient number, since it is larger than the sum of its proper divisors (37659).

5663557 is a wasteful number, since it uses less digits than its factorization.

5663557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37658.

The product of its digits is 94500, while the sum is 37.

The square root of 5663557 is about 2379.8228925699. The cubic root of 5663557 is about 178.2500903215.

The spelling of 5663557 in words is "five million, six hundred sixty-three thousand, five hundred fifty-seven".