56567656727 has 2 divisors, whose sum is σ = 56567656728. Its totient is φ = 56567656726.

The previous prime is 56567656699. The next prime is 56567656741. The reversal of 56567656727 is 72765676565.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56567656727 - 2⁸ = 56567656471 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 56567656727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56507656727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28283828363 + 28283828364.

It is an arithmetic number, because the mean of its divisors is an integer number (28283828364).

Almost surely, 2^56567656727 is an apocalyptic number.

56567656727 is a deficient number, since it is larger than the sum of its proper divisors (1).

56567656727 is an equidigital number, since it uses as much as digits as its factorization.

56567656727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 111132000, while the sum is 62.

The spelling of 56567656727 in words is "fifty-six billion, five hundred sixty-seven million, six hundred fifty-six thousand, seven hundred twenty-seven".