56261154641 has 2 divisors, whose sum is σ = 56261154642. Its totient is φ = 56261154640.

The previous prime is 56261154637. The next prime is 56261154661. The reversal of 56261154641 is 14645116265.

56261154641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45080207041 + 11180947600 = 212321^2 + 105740^2 .

It is a cyclic number.

It is not a de Polignac number, because 56261154641 - 2² = 56261154637 is a prime.

It is not a weakly prime, because it can be changed into another prime (56261154601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28130577320 + 28130577321.

It is an arithmetic number, because the mean of its divisors is an integer number (28130577321).

Almost surely, 2^56261154641 is an apocalyptic number.

It is an amenable number.

56261154641 is a deficient number, since it is larger than the sum of its proper divisors (1).

56261154641 is an equidigital number, since it uses as much as digits as its factorization.

56261154641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 41.

The spelling of 56261154641 in words is "fifty-six billion, two hundred sixty-one million, one hundred fifty-four thousand, six hundred forty-one".