56673956653 has 2 divisors, whose sum is σ = 56673956654. Its totient is φ = 56673956652.

The previous prime is 56673956627. The next prime is 56673956659. The reversal of 56673956653 is 35665937665.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32716489129 + 23957467524 = 180877^2 + 154782^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56673956653 is a prime.

It is a super-2 number, since 2×56673956653² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56673956591 and 56673956600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56673956659) 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 as a sum of consecutive naturals, namely, 28336978326 + 28336978327.

It is an arithmetic number, because the mean of its divisors is an integer number (28336978327).

Almost surely, 2^56673956653 is an apocalyptic number.

It is an amenable number.

56673956653 is a deficient number, since it is larger than the sum of its proper divisors (1).

56673956653 is an equidigital number, since it uses as much as digits as its factorization.

56673956653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 91854000, while the sum is 61.

The spelling of 56673956653 in words is "fifty-six billion, six hundred seventy-three million, nine hundred fifty-six thousand, six hundred fifty-three".