5205500691 has 16 divisors (see below), whose sum is σ = 7668463104. Its totient is φ = 3124187264.

The previous prime is 5205500669. The next prime is 5205500719. The reversal of 5205500691 is 1960055025.

It is a cyclic number.

It is not a de Polignac number, because 5205500691 - 2²³ = 5197112083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5205500591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2217711 + ... + 2220056.

It is an arithmetic number, because the mean of its divisors is an integer number (479278944).

Almost surely, 2^5205500691 is an apocalyptic number.

5205500691 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

5205500691 is a deficient number, since it is larger than the sum of its proper divisors (2462962413).

5205500691 is a wasteful number, since it uses less digits than its factorization.

5205500691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4437810.

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 5205500691 is about 72149.1558578477. The cubic root of 5205500691 is about 1733.0888817701.

The spelling of 5205500691 in words is "five billion, two hundred five million, five hundred thousand, six hundred ninety-one".