55867263791 has 2 divisors, whose sum is σ = 55867263792. Its totient is φ = 55867263790.

The previous prime is 55867263743. The next prime is 55867263797. The reversal of 55867263791 is 19736276855.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55867263791 - 2³⁴ = 38687394607 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55867263791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55867263797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27933631895 + 27933631896.

It is an arithmetic number, because the mean of its divisors is an integer number (27933631896).

Almost surely, 2^55867263791 is an apocalyptic number.

55867263791 is a deficient number, since it is larger than the sum of its proper divisors (1).

55867263791 is an equidigital number, since it uses as much as digits as its factorization.

55867263791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19051200, while the sum is 59.

The spelling of 55867263791 in words is "fifty-five billion, eight hundred sixty-seven million, two hundred sixty-three thousand, seven hundred ninety-one".