5205205505 has 48 divisors (see below), whose sum is σ = 6781592064. Its totient is φ = 3830561280.

The previous prime is 5205205459. The next prime is 5205205517. The reversal of 5205205505 is 5055025025.

It is a happy number.

It is not a de Polignac number, because 5205205505 - 2²⁰ = 5204156929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9515642 + ... + 9516188.

It is an arithmetic number, because the mean of its divisors is an integer number (141283168).

Almost surely, 2^5205205505 is an apocalyptic number.

It is an amenable number.

5205205505 is a deficient number, since it is larger than the sum of its proper divisors (1576386559).

5205205505 is a wasteful number, since it uses less digits than its factorization.

5205205505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 29.

The square root of 5205205505 is about 72147.1101638867. The cubic root of 5205205505 is about 1733.0561219854.

It can be divided in two parts, 520 and 5205505, that added together give a palindrome (5206025).

The spelling of 5205205505 in words is "five billion, two hundred five million, two hundred five thousand, five hundred five".