5548041721 has 2 divisors, whose sum is σ = 5548041722. Its totient is φ = 5548041720.

The previous prime is 5548041713. The next prime is 5548041739. The reversal of 5548041721 is 1271408455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5378755600 + 169286121 = 73340^2 + 13011^2 .

It is a cyclic number.

It is not a de Polignac number, because 5548041721 - 2³ = 5548041713 is a prime.

It is not a weakly prime, because it can be changed into another prime (5548041221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2774020860 + 2774020861.

It is an arithmetic number, because the mean of its divisors is an integer number (2774020861).

Almost surely, 2^5548041721 is an apocalyptic number.

It is an amenable number.

5548041721 is a deficient number, since it is larger than the sum of its proper divisors (1).

5548041721 is an equidigital number, since it uses as much as digits as its factorization.

5548041721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 5548041721 is about 74485.1778611020. The cubic root of 5548041721 is about 1770.2987909942.

The spelling of 5548041721 in words is "five billion, five hundred forty-eight million, forty-one thousand, seven hundred twenty-one".