55643046727 has 2 divisors, whose sum is σ = 55643046728. Its totient is φ = 55643046726.

The previous prime is 55643046691. The next prime is 55643046821. The reversal of 55643046727 is 72764034655.

55643046727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55643046727 - 2¹¹ = 55643044679 is a prime.

It is a super-2 number, since 2×55643046727² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55643046127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27821523363 + 27821523364.

It is an arithmetic number, because the mean of its divisors is an integer number (27821523364).

Almost surely, 2^55643046727 is an apocalyptic number.

55643046727 is a deficient number, since it is larger than the sum of its proper divisors (1).

55643046727 is an equidigital number, since it uses as much as digits as its factorization.

55643046727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4233600, while the sum is 49.

The spelling of 55643046727 in words is "fifty-five billion, six hundred forty-three million, forty-six thousand, seven hundred twenty-seven".