5637642653 has 4 divisors (see below), whose sum is σ = 5650199100. Its totient is φ = 5625086208.

The previous prime is 5637642623. The next prime is 5637642709. The reversal of 5637642653 is 3562467365.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3562467365 = 5 ⋅712493473.

It can be written as a sum of positive squares in 2 ways, for example, as 3799119769 + 1838522884 = 61637^2 + 42878^2 .

It is a cyclic number.

It is not a de Polignac number, because 5637642653 - 2⁸ = 5637642397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5637642598 and 5637642607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5637642623) 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, 6277550 + ... + 6278447.

It is an arithmetic number, because the mean of its divisors is an integer number (1412549775).

Almost surely, 2^5637642653 is an apocalyptic number.

It is an amenable number.

5637642653 is a deficient number, since it is larger than the sum of its proper divisors (12556447).

5637642653 is a wasteful number, since it uses less digits than its factorization.

5637642653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12556446.

The product of its digits is 2721600, while the sum is 47.

The square root of 5637642653 is about 75084.2370474656. The cubic root of 5637642653 is about 1779.7780572708.

The spelling of 5637642653 in words is "five billion, six hundred thirty-seven million, six hundred forty-two thousand, six hundred fifty-three".