56231365637 has 2 divisors, whose sum is σ = 56231365638. Its totient is φ = 56231365636.

The previous prime is 56231365627. The next prime is 56231365649. The reversal of 56231365637 is 73656313265.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45919775521 + 10311590116 = 214289^2 + 101546^2 .

It is a cyclic number.

It is not a de Polignac number, because 56231365637 - 2⁶ = 56231365573 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56231365591 and 56231365600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56231365627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28115682818 + 28115682819.

It is an arithmetic number, because the mean of its divisors is an integer number (28115682819).

Almost surely, 2^56231365637 is an apocalyptic number.

It is an amenable number.

56231365637 is a deficient number, since it is larger than the sum of its proper divisors (1).

56231365637 is an equidigital number, since it uses as much as digits as its factorization.

56231365637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2041200, while the sum is 47.

The spelling of 56231365637 in words is "fifty-six billion, two hundred thirty-one million, three hundred sixty-five thousand, six hundred thirty-seven".