5651637 has 4 divisors (see below), whose sum is σ = 7535520. Its totient is φ = 3767756.

The previous prime is 5651623. The next prime is 5651707. The reversal of 5651637 is 7361565.

5651637 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 5651637 - 2⁴ = 5651621 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 5651598 and 5651607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5651617) 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, 941937 + ... + 941942.

It is an arithmetic number, because the mean of its divisors is an integer number (1883880).

Almost surely, 2^5651637 is an apocalyptic number.

It is an amenable number.

5651637 is a deficient number, since it is larger than the sum of its proper divisors (1883883).

5651637 is a wasteful number, since it uses less digits than its factorization.

5651637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883882.

The product of its digits is 18900, while the sum is 33.

The square root of 5651637 is about 2377.3171854004. The cubic root of 5651637 is about 178.1249490920.

The spelling of 5651637 in words is "five million, six hundred fifty-one thousand, six hundred thirty-seven".