5656271213 has 4 divisors (see below), whose sum is σ = 5787812448. Its totient is φ = 5524729980.

The previous prime is 5656271209. The next prime is 5656271219. The reversal of 5656271213 is 3121726565.

It is a happy number.

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 5656271213 - 2² = 5656271209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5656271219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65770553 + ... + 65770638.

It is an arithmetic number, because the mean of its divisors is an integer number (1446953112).

Almost surely, 2^5656271213 is an apocalyptic number.

It is an amenable number.

5656271213 is a deficient number, since it is larger than the sum of its proper divisors (131541235).

5656271213 is a wasteful number, since it uses less digits than its factorization.

5656271213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131541234.

The product of its digits is 75600, while the sum is 38.

The square root of 5656271213 is about 75208.1858111203. The cubic root of 5656271213 is about 1781.7362191817.

Adding to 5656271213 its reverse (3121726565), we get a palindrome (8777997778).

The spelling of 5656271213 in words is "five billion, six hundred fifty-six million, two hundred seventy-one thousand, two hundred thirteen".