55273985287 has 2 divisors, whose sum is σ = 55273985288. Its totient is φ = 55273985286.

The previous prime is 55273985257. The next prime is 55273985309. The reversal of 55273985287 is 78258937255.

55273985287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55273985287 - 2⁷ = 55273985159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55273985237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27636992643 + 27636992644.

It is an arithmetic number, because the mean of its divisors is an integer number (27636992644).

Almost surely, 2^55273985287 is an apocalyptic number.

55273985287 is a deficient number, since it is larger than the sum of its proper divisors (1).

55273985287 is an equidigital number, since it uses as much as digits as its factorization.

55273985287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336000, while the sum is 61.

The spelling of 55273985287 in words is "fifty-five billion, two hundred seventy-three million, nine hundred eighty-five thousand, two hundred eighty-seven".