5115565550 has 12 divisors (see below), whose sum is σ = 9514952016. Its totient is φ = 2046226200.

The previous prime is 5115565541. The next prime is 5115565579. The reversal of 5115565550 is 555655115.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51155606 + ... + 51155705.

It is an arithmetic number, because the mean of its divisors is an integer number (792912668).

Almost surely, 2^5115565550 is an apocalyptic number.

5115565550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5115565550 is a deficient number, since it is larger than the sum of its proper divisors (4399386466).

5115565550 is a wasteful number, since it uses less digits than its factorization.

5115565550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102311323 (or 102311318 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 38.

The square root of 5115565550 is about 71523.1819062883. The cubic root of 5115565550 is about 1723.0500180457.

It can be divided in two parts, 5115565 and 550, that added together give a palindrome (5116115).

The spelling of 5115565550 in words is "five billion, one hundred fifteen million, five hundred sixty-five thousand, five hundred fifty".