55448136559 has 2 divisors, whose sum is σ = 55448136560. Its totient is φ = 55448136558.

The previous prime is 55448136553. The next prime is 55448136617. The reversal of 55448136559 is 95563184455.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55448136559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55448136553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27724068279 + 27724068280.

It is an arithmetic number, because the mean of its divisors is an integer number (27724068280).

Almost surely, 2^55448136559 is an apocalyptic number.

55448136559 is a deficient number, since it is larger than the sum of its proper divisors (1).

55448136559 is an equidigital number, since it uses as much as digits as its factorization.

55448136559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960000, while the sum is 55.

The spelling of 55448136559 in words is "fifty-five billion, four hundred forty-eight million, one hundred thirty-six thousand, five hundred fifty-nine".