5545619857 has 2 divisors, whose sum is σ = 5545619858. Its totient is φ = 5545619856.

The previous prime is 5545619837. The next prime is 5545619867. The reversal of 5545619857 is 7589165455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4984924816 + 560695041 = 70604^2 + 23679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5545619857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5545619798 and 5545619807.

It is not a weakly prime, because it can be changed into another prime (5545619837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2772809928 + 2772809929.

It is an arithmetic number, because the mean of its divisors is an integer number (2772809929).

Almost surely, 2^5545619857 is an apocalyptic number.

It is an amenable number.

5545619857 is a deficient number, since it is larger than the sum of its proper divisors (1).

5545619857 is an equidigital number, since it uses as much as digits as its factorization.

5545619857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560000, while the sum is 55.

The square root of 5545619857 is about 74468.9187312398. The cubic root of 5545619857 is about 1770.0411597353.

The spelling of 5545619857 in words is "five billion, five hundred forty-five million, six hundred nineteen thousand, eight hundred fifty-seven".