5200540421565 has 16 divisors (see below), whose sum is σ = 8810327302848. Its totient is φ = 2610467348736.

The previous prime is 5200540421533. The next prime is 5200540421623. The reversal of 5200540421565 is 5651240450025.

It is not a de Polignac number, because 5200540421565 - 2⁵ = 5200540421533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10197137827 + ... + 10197138336.

It is an arithmetic number, because the mean of its divisors is an integer number (550645456428).

Almost surely, 2^{5200540421565} is an apocalyptic number.

It is an amenable number.

5200540421565 is a deficient number, since it is larger than the sum of its proper divisors (3609786881283).

5200540421565 is a wasteful number, since it uses less digits than its factorization.

5200540421565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20394276188.

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 5200540421565 in words is "five trillion, two hundred billion, five hundred forty million, four hundred twenty-one thousand, five hundred sixty-five".