5100500005565 has 4 divisors (see below), whose sum is σ = 6120600006684. Its totient is φ = 4080400004448.

The previous prime is 5100500005541. The next prime is 5100500005571. The reversal of 5100500005565 is 5655000050015.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1736731258201 + 3363768747364 = 1317851^2 + 1834058^2 .

It is a cyclic number.

It is not a de Polignac number, because 5100500005565 - 2¹⁸ = 5100499743421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510050000552 + ... + 510050000561.

It is an arithmetic number, because the mean of its divisors is an integer number (1530150001671).

Almost surely, 2^{5100500005565} is an apocalyptic number.

It is an amenable number.

5100500005565 is a deficient number, since it is larger than the sum of its proper divisors (1020100001119).

5100500005565 is a wasteful number, since it uses less digits than its factorization.

5100500005565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020100001118.

The product of its (nonzero) digits is 18750, while the sum is 32.

The spelling of 5100500005565 in words is "five trillion, one hundred billion, five hundred million, five thousand, five hundred sixty-five".