56324000561 has 2 divisors, whose sum is σ = 56324000562. Its totient is φ = 56324000560.

The previous prime is 56324000519. The next prime is 56324000563. The reversal of 56324000561 is 16500042365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53594565025 + 2729435536 = 231505^2 + 52244^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56324000561 is a prime.

Together with 56324000563, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56324000563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28162000280 + 28162000281.

It is an arithmetic number, because the mean of its divisors is an integer number (28162000281).

Almost surely, 2^56324000561 is an apocalyptic number.

It is an amenable number.

56324000561 is a deficient number, since it is larger than the sum of its proper divisors (1).

56324000561 is an equidigital number, since it uses as much as digits as its factorization.

56324000561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 56324000561 in words is "fifty-six billion, three hundred twenty-four million, five hundred sixty-one", and thus it is an aban number.