5515553749 has 2 divisors, whose sum is σ = 5515553750. Its totient is φ = 5515553748.

The previous prime is 5515553707. The next prime is 5515553767. The reversal of 5515553749 is 9473555155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3285353124 + 2230200625 = 57318^2 + 47225^2 .

It is a cyclic number.

It is not a de Polignac number, because 5515553749 - 2¹⁵ = 5515520981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5515553789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2757776874 + 2757776875.

It is an arithmetic number, because the mean of its divisors is an integer number (2757776875).

Almost surely, 2^5515553749 is an apocalyptic number.

It is an amenable number.

5515553749 is a deficient number, since it is larger than the sum of its proper divisors (1).

5515553749 is an equidigital number, since it uses as much as digits as its factorization.

5515553749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2362500, while the sum is 49.

The square root of 5515553749 is about 74266.7741927708. The cubic root of 5515553749 is about 1766.8365456001.

The spelling of 5515553749 in words is "five billion, five hundred fifteen million, five hundred fifty-three thousand, seven hundred forty-nine".