5515555268 has 6 divisors (see below), whose sum is σ = 9652221726. Its totient is φ = 2757777632.

The previous prime is 5515555231. The next prime is 5515555271. The reversal of 5515555268 is 8625555155.

It can be written as a sum of positive squares in only one way, i.e., 5287907524 + 227647744 = 72718^2 + 15088^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689444405 + ... + 689444412.

It is an arithmetic number, because the mean of its divisors is an integer number (1608703621).

Almost surely, 2^5515555268 is an apocalyptic number.

It is an amenable number.

5515555268 is a deficient number, since it is larger than the sum of its proper divisors (4136666458).

5515555268 is a wasteful number, since it uses less digits than its factorization.

5515555268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378888821 (or 1378888819 counting only the distinct ones).

The product of its digits is 1500000, while the sum is 47.

The square root of 5515555268 is about 74266.7844194159. The cubic root of 5515555268 is about 1766.8367077975.

The spelling of 5515555268 in words is "five billion, five hundred fifteen million, five hundred fifty-five thousand, two hundred sixty-eight".