5205500690 has 16 divisors (see below), whose sum is σ = 10090663128. Its totient is φ = 1922030976.

The previous prime is 5205500669. The next prime is 5205500719. The reversal of 5205500690 is 960055025.

It can be written as a sum of positive squares in 4 ways, for example, as 1283860561 + 3921640129 = 35831^2 + 62623^2 .

It is a super-2 number, since 2×5205500690² = 54194474867180952200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20021027 + ... + 20021286.

Almost surely, 2^5205500690 is an apocalyptic number.

5205500690 is a deficient number, since it is larger than the sum of its proper divisors (4885162438).

5205500690 is a wasteful number, since it uses less digits than its factorization.

5205500690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40042333.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 5205500690 is about 72149.1558509176. The cubic root of 5205500690 is about 1733.0888816591.

The spelling of 5205500690 in words is "five billion, two hundred five million, five hundred thousand, six hundred ninety".