5515655949 has 6 divisors (see below), whose sum is σ = 7967058606. Its totient is φ = 3677103960.

The previous prime is 5515655947. The next prime is 5515655983. The reversal of 5515655949 is 9495565155.

It can be written as a sum of positive squares in only one way, i.e., 5322723849 + 192932100 = 72957^2 + 13890^2 .

It is not a de Polignac number, because 5515655949 - 2¹ = 5515655947 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5515655895 and 5515655904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515655947) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 306425322 + ... + 306425339.

It is an arithmetic number, because the mean of its divisors is an integer number (1327843101).

Almost surely, 2^5515655949 is an apocalyptic number.

It is an amenable number.

5515655949 is a deficient number, since it is larger than the sum of its proper divisors (2451402657).

5515655949 is a wasteful number, since it uses less digits than its factorization.

5515655949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612850667 (or 612850664 counting only the distinct ones).

The product of its digits is 6075000, while the sum is 54.

The square root of 5515655949 is about 74267.4622496285. The cubic root of 5515655949 is about 1766.8474583502.

The spelling of 5515655949 in words is "five billion, five hundred fifteen million, six hundred fifty-five thousand, nine hundred forty-nine".