5665031 has 4 divisors (see below), whose sum is σ = 5701272. Its totient is φ = 5628792.

The previous prime is 5665027. The next prime is 5665039. The reversal of 5665031 is 1305665.

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

It is a cyclic number.

It is not a de Polignac number, because 5665031 - 2² = 5665027 is a prime.

It is a super-2 number, since 2×5665031² = 64185152461922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5665039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17885 + ... + 18198.

It is an arithmetic number, because the mean of its divisors is an integer number (1425318).

Almost surely, 2^5665031 is an apocalyptic number.

5665031 is a deficient number, since it is larger than the sum of its proper divisors (36241).

5665031 is a wasteful number, since it uses less digits than its factorization.

5665031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36240.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 5665031 is about 2380.1325593336. The cubic root of 5665031 is about 178.2655527975.

The spelling of 5665031 in words is "five million, six hundred sixty-five thousand, thirty-one".