55816055061859 has 2 divisors, whose sum is σ = 55816055061860. Its totient is φ = 55816055061858.

The previous prime is 55816055061827. The next prime is 55816055061869. The reversal of 55816055061859 is 95816055061855.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55816055061859 - 2⁵ = 55816055061827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55816055061859.

It is not a weakly prime, because it can be changed into another prime (55816055061869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27908027530929 + 27908027530930.

It is an arithmetic number, because the mean of its divisors is an integer number (27908027530930).

Almost surely, 2^{55816055061859} is an apocalyptic number.

55816055061859 is a deficient number, since it is larger than the sum of its proper divisors (1).

55816055061859 is an equidigital number, since it uses as much as digits as its factorization.

55816055061859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800000, while the sum is 64.

The spelling of 55816055061859 in words is "fifty-five trillion, eight hundred sixteen billion, fifty-five million, sixty-one thousand, eight hundred fifty-nine".