56820514747 has 2 divisors, whose sum is σ = 56820514748. Its totient is φ = 56820514746.

The previous prime is 56820514727. The next prime is 56820514753. The reversal of 56820514747 is 74741502865.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56820514747 - 2¹¹ = 56820512699 is a prime.

It is a super-2 number, since 2×56820514747² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56820514747.

It is not a weakly prime, because it can be changed into another prime (56820514727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28410257373 + 28410257374.

It is an arithmetic number, because the mean of its divisors is an integer number (28410257374).

Almost surely, 2^56820514747 is an apocalyptic number.

56820514747 is a deficient number, since it is larger than the sum of its proper divisors (1).

56820514747 is an equidigital number, since it uses as much as digits as its factorization.

56820514747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1881600, while the sum is 49.

The spelling of 56820514747 in words is "fifty-six billion, eight hundred twenty million, five hundred fourteen thousand, seven hundred forty-seven".