55548443539 has 2 divisors, whose sum is σ = 55548443540. Its totient is φ = 55548443538.

The previous prime is 55548443473. The next prime is 55548443563. The reversal of 55548443539 is 93534484555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55548443539 - 2⁷ = 55548443411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55548443539.

It is not a weakly prime, because it can be changed into another prime (55548446539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27774221769 + 27774221770.

It is an arithmetic number, because the mean of its divisors is an integer number (27774221770).

Almost surely, 2^55548443539 is an apocalyptic number.

55548443539 is a deficient number, since it is larger than the sum of its proper divisors (1).

55548443539 is an equidigital number, since it uses as much as digits as its factorization.

55548443539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920000, while the sum is 55.

The spelling of 55548443539 in words is "fifty-five billion, five hundred forty-eight million, four hundred forty-three thousand, five hundred thirty-nine".