5503551781177 has 2 divisors, whose sum is σ = 5503551781178. Its totient is φ = 5503551781176.

The previous prime is 5503551781171. The next prime is 5503551781229. The reversal of 5503551781177 is 7711871553055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4764873413881 + 738678367296 = 2182859^2 + 859464^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5503551781177 is a prime.

It is not a weakly prime, because it can be changed into another prime (5503551781171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2751775890588 + 2751775890589.

It is an arithmetic number, because the mean of its divisors is an integer number (2751775890589).

Almost surely, 2^{5503551781177} is an apocalyptic number.

It is an amenable number.

5503551781177 is a deficient number, since it is larger than the sum of its proper divisors (1).

5503551781177 is an equidigital number, since it uses as much as digits as its factorization.

5503551781177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5145000, while the sum is 55.

The spelling of 5503551781177 in words is "five trillion, five hundred three billion, five hundred fifty-one million, seven hundred eighty-one thousand, one hundred seventy-seven".