56651248739 has 2 divisors, whose sum is σ = 56651248740. Its totient is φ = 56651248738.

The previous prime is 56651248721. The next prime is 56651248741. The reversal of 56651248739 is 93784215665.

56651248739 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56651248739 is a prime.

Together with 56651248741, 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 (56651241739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28325624369 + 28325624370.

It is an arithmetic number, because the mean of its divisors is an integer number (28325624370).

Almost surely, 2^56651248739 is an apocalyptic number.

56651248739 is a deficient number, since it is larger than the sum of its proper divisors (1).

56651248739 is an equidigital number, since it uses as much as digits as its factorization.

56651248739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10886400, while the sum is 56.

The spelling of 56651248739 in words is "fifty-six billion, six hundred fifty-one million, two hundred forty-eight thousand, seven hundred thirty-nine".