5650050016561 has 4 divisors (see below), whose sum is σ = 5651688190500. Its totient is φ = 5648411842624.

The previous prime is 5650050016553. The next prime is 5650050016579. The reversal of 5650050016561 is 1656100500565.

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 1866655457536 + 3783394559025 = 1366256^2 + 1945095^2 .

It is a cyclic number.

It is not a de Polignac number, because 5650050016561 - 2³ = 5650050016553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5650050016591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 819081796 + ... + 819088693.

It is an arithmetic number, because the mean of its divisors is an integer number (1412922047625).

Almost surely, 2^{5650050016561} is an apocalyptic number.

It is an amenable number.

5650050016561 is a deficient number, since it is larger than the sum of its proper divisors (1638173939).

5650050016561 is a wasteful number, since it uses less digits than its factorization.

5650050016561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638173938.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 5650050016561 in words is "five trillion, six hundred fifty billion, fifty million, sixteen thousand, five hundred sixty-one".