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5544068821 is a prime number
BaseRepresentation
bin1010010100111001…
…11100011011010101
3112022101010212200021
411022130330123111
542323240200241
62314044345141
7254246543644
oct51234743325
915271125607
105544068821
112395533a65
1210a88451b1
136a47a34c5
143a844935b
15226ac70d1
hex14a73c6d5

5544068821 has 2 divisors, whose sum is σ = 5544068822. Its totient is φ = 5544068820.

The previous prime is 5544068807. The next prime is 5544068857. The reversal of 5544068821 is 1288604455.

5544068821 is digitally balanced in base 3, 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., 5473928196 + 70140625 = 73986^2 + 8375^2 .

It is a cyclic number.

It is not a de Polignac number, because 5544068821 - 227 = 5409851093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5544068801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2772034410 + 2772034411.

It is an arithmetic number, because the mean of its divisors is an integer number (2772034411).

Almost surely, 25544068821 is an apocalyptic number.

It is an amenable number.

5544068821 is a deficient number, since it is larger than the sum of its proper divisors (1).

5544068821 is an equidigital number, since it uses as much as digits as its factorization.

5544068821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 307200, while the sum is 43.

The square root of 5544068821 is about 74458.5040206960. The cubic root of 5544068821 is about 1769.8761253706.

The spelling of 5544068821 in words is "five billion, five hundred forty-four million, sixty-eight thousand, eight hundred twenty-one".