5621765099 has 4 divisors (see below), whose sum is σ = 5631027264. Its totient is φ = 5612502936.

The previous prime is 5621765069. The next prime is 5621765117. The reversal of 5621765099 is 9905671265.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5621765099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5621765059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4630172 + ... + 4631385.

It is an arithmetic number, because the mean of its divisors is an integer number (1407756816).

Almost surely, 2^5621765099 is an apocalyptic number.

5621765099 is a deficient number, since it is larger than the sum of its proper divisors (9262165).

5621765099 is an equidigital number, since it uses as much as digits as its factorization.

5621765099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9262164.

The product of its (nonzero) digits is 1020600, while the sum is 50.

The square root of 5621765099 is about 74978.4308918238. The cubic root of 5621765099 is about 1778.1056624932.

The spelling of 5621765099 in words is "five billion, six hundred twenty-one million, seven hundred sixty-five thousand, ninety-nine".