55886337509 has 2 divisors, whose sum is σ = 55886337510. Its totient is φ = 55886337508.

The previous prime is 55886337469. The next prime is 55886337571. The reversal of 55886337509 is 90573368855.

55886337509 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 can be written as a sum of positive squares in only one way, i.e., 43737448225 + 12148889284 = 209135^2 + 110222^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55886337509 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55886357509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27943168754 + 27943168755.

It is an arithmetic number, because the mean of its divisors is an integer number (27943168755).

Almost surely, 2^55886337509 is an apocalyptic number.

It is an amenable number.

55886337509 is a deficient number, since it is larger than the sum of its proper divisors (1).

55886337509 is an equidigital number, since it uses as much as digits as its factorization.

55886337509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216000, while the sum is 59.

The spelling of 55886337509 in words is "fifty-five billion, eight hundred eighty-six million, three hundred thirty-seven thousand, five hundred nine".