5257663 has 4 divisors (see below), whose sum is σ = 5399800. Its totient is φ = 5115528.

The previous prime is 5257627. The next prime is 5257711. The reversal of 5257663 is 3667525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5257663 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 (5257463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71013 + ... + 71086.

It is an arithmetic number, because the mean of its divisors is an integer number (1349950).

Almost surely, 2^5257663 is an apocalyptic number.

5257663 is a deficient number, since it is larger than the sum of its proper divisors (142137).

5257663 is a wasteful number, since it uses less digits than its factorization.

5257663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142136.

The product of its digits is 37800, while the sum is 34.

The square root of 5257663 is about 2292.9594414206. The cubic root of 5257663 is about 173.8858523803.

The spelling of 5257663 in words is "five million, two hundred fifty-seven thousand, six hundred sixty-three".