5656633213 has 32 divisors (see below), whose sum is σ = 7172259840. Its totient is φ = 4333512960.

The previous prime is 5656633163. The next prime is 5656633219. The reversal of 5656633213 is 3123366565.

It is a happy number.

It is not a de Polignac number, because 5656633213 - 2²¹ = 5654536061 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5656633219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1102468 + ... + 1107586.

It is an arithmetic number, because the mean of its divisors is an integer number (224133120).

Almost surely, 2^5656633213 is an apocalyptic number.

It is an amenable number.

5656633213 is a deficient number, since it is larger than the sum of its proper divisors (1515626627).

5656633213 is a wasteful number, since it uses less digits than its factorization.

5656633213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5377.

The product of its digits is 291600, while the sum is 40.

The square root of 5656633213 is about 75210.5924255354. The cubic root of 5656633213 is about 1781.7742286009.

Adding to 5656633213 its reverse (3123366565), we get a palindrome (8779999778).

The spelling of 5656633213 in words is "five billion, six hundred fifty-six million, six hundred thirty-three thousand, two hundred thirteen".