56519151641 has 2 divisors, whose sum is σ = 56519151642. Its totient is φ = 56519151640.

The previous prime is 56519151599. The next prime is 56519151679. The reversal of 56519151641 is 14615191565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56503191616 + 15960025 = 237704^2 + 3995^2 .

It is a cyclic number.

It is not a de Polignac number, because 56519151641 - 2²² = 56514957337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56519151592 and 56519151601.

It is not a weakly prime, because it can be changed into another prime (56519157641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28259575820 + 28259575821.

It is an arithmetic number, because the mean of its divisors is an integer number (28259575821).

Almost surely, 2^56519151641 is an apocalyptic number.

It is an amenable number.

56519151641 is a deficient number, since it is larger than the sum of its proper divisors (1).

56519151641 is an equidigital number, since it uses as much as digits as its factorization.

56519151641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 44.

The spelling of 56519151641 in words is "fifty-six billion, five hundred nineteen million, one hundred fifty-one thousand, six hundred forty-one".