56533689767 has 2 divisors, whose sum is σ = 56533689768. Its totient is φ = 56533689766.

The previous prime is 56533689743. The next prime is 56533689809. The reversal of 56533689767 is 76798633565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56533689767 - 2¹⁸ = 56533427623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56533689067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28266844883 + 28266844884.

It is an arithmetic number, because the mean of its divisors is an integer number (28266844884).

Almost surely, 2^56533689767 is an apocalyptic number.

56533689767 is a deficient number, since it is larger than the sum of its proper divisors (1).

56533689767 is an equidigital number, since it uses as much as digits as its factorization.

56533689767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 171460800, while the sum is 65.

The spelling of 56533689767 in words is "fifty-six billion, five hundred thirty-three million, six hundred eighty-nine thousand, seven hundred sixty-seven".