56816554061 has 2 divisors, whose sum is σ = 56816554062. Its totient is φ = 56816554060.

The previous prime is 56816554037. The next prime is 56816554079. The reversal of 56816554061 is 16045561865.

56816554061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51753520036 + 5063034025 = 227494^2 + 71155^2 .

It is a cyclic number.

It is not a de Polignac number, because 56816554061 - 2¹⁰ = 56816553037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56816553997 and 56816554015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56816554021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28408277030 + 28408277031.

It is an arithmetic number, because the mean of its divisors is an integer number (28408277031).

Almost surely, 2^56816554061 is an apocalyptic number.

It is an amenable number.

56816554061 is a deficient number, since it is larger than the sum of its proper divisors (1).

56816554061 is an equidigital number, since it uses as much as digits as its factorization.

56816554061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864000, while the sum is 47.

It can be divided in two parts, 568165 and 54061, that added together give a palindrome (622226).

The spelling of 56816554061 in words is "fifty-six billion, eight hundred sixteen million, five hundred fifty-four thousand, sixty-one".