5555888617 has 2 divisors, whose sum is σ = 5555888618. Its totient is φ = 5555888616.

The previous prime is 5555888593. The next prime is 5555888621. The reversal of 5555888617 is 7168885555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4593586176 + 962302441 = 67776^2 + 31021^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5555888617 is a prime.

It is a super-3 number, since 3×5555888617³ (a number of 30 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (5555888687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777944308 + 2777944309.

It is an arithmetic number, because the mean of its divisors is an integer number (2777944309).

Almost surely, 2^5555888617 is an apocalyptic number.

It is an amenable number.

5555888617 is a deficient number, since it is larger than the sum of its proper divisors (1).

5555888617 is an equidigital number, since it uses as much as digits as its factorization.

5555888617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440000, while the sum is 58.

The square root of 5555888617 is about 74537.8334605991. The cubic root of 5555888617 is about 1771.1330076569.

The spelling of 5555888617 in words is "five billion, five hundred fifty-five million, eight hundred eighty-eight thousand, six hundred seventeen".