5546121857 has 2 divisors, whose sum is σ = 5546121858. Its totient is φ = 5546121856.

The previous prime is 5546121851. The next prime is 5546121881. The reversal of 5546121857 is 7581216455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5479552576 + 66569281 = 74024^2 + 8159^2 .

It is a cyclic number.

It is not a de Polignac number, because 5546121857 - 2¹² = 5546117761 is a prime.

It is not a weakly prime, because it can be changed into another prime (5546121851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2773060928 + 2773060929.

It is an arithmetic number, because the mean of its divisors is an integer number (2773060929).

Almost surely, 2^5546121857 is an apocalyptic number.

It is an amenable number.

5546121857 is a deficient number, since it is larger than the sum of its proper divisors (1).

5546121857 is an equidigital number, since it uses as much as digits as its factorization.

5546121857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336000, while the sum is 44.

The square root of 5546121857 is about 74472.2891886640. The cubic root of 5546121857 is about 1770.0945672819.

The spelling of 5546121857 in words is "five billion, five hundred forty-six million, one hundred twenty-one thousand, eight hundred fifty-seven".