5643031 has 4 divisors (see below), whose sum is σ = 5974992. Its totient is φ = 5311072.

The previous prime is 5642999. The next prime is 5643041. The reversal of 5643031 is 1303465.

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

It is not a de Polignac number, because 5643031 - 2⁵ = 5642999 is a prime.

It is a super-2 number, since 2×5643031² = 63687597733922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5642993 and 5643011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5643041) 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, 165955 + ... + 165988.

It is an arithmetic number, because the mean of its divisors is an integer number (1493748).

Almost surely, 2^5643031 is an apocalyptic number.

5643031 is a deficient number, since it is larger than the sum of its proper divisors (331961).

5643031 is a wasteful number, since it uses less digits than its factorization.

5643031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331960.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 5643031 is about 2375.5064723128. The cubic root of 5643031 is about 178.0344902235.

Adding to 5643031 its reverse (1303465), we get a palindrome (6946496).

The spelling of 5643031 in words is "five million, six hundred forty-three thousand, thirty-one".