55887846887 has 2 divisors, whose sum is σ = 55887846888. Its totient is φ = 55887846886.

The previous prime is 55887846869. The next prime is 55887846961. The reversal of 55887846887 is 78864878855.

It is an a-pointer prime, because the next prime (55887846961) can be obtained adding 55887846887 to its sum of digits (74).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55887846887 - 2¹⁰ = 55887845863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55887846587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27943923443 + 27943923444.

It is an arithmetic number, because the mean of its divisors is an integer number (27943923444).

Almost surely, 2^55887846887 is an apocalyptic number.

55887846887 is a deficient number, since it is larger than the sum of its proper divisors (1).

55887846887 is an equidigital number, since it uses as much as digits as its factorization.

55887846887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 963379200, while the sum is 74.

The spelling of 55887846887 in words is "fifty-five billion, eight hundred eighty-seven million, eight hundred forty-six thousand, eight hundred eighty-seven".