5595899821 has 2 divisors, whose sum is σ = 5595899822. Its totient is φ = 5595899820.

The previous prime is 5595899819. The next prime is 5595899917. The reversal of 5595899821 is 1289985955.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3385959721 + 2209940100 = 58189^2 + 47010^2 .

It is a cyclic number.

It is not a de Polignac number, because 5595899821 - 2¹ = 5595899819 is a prime.

Together with 5595899819, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 5595899821.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5595899921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2797949910 + 2797949911.

It is an arithmetic number, because the mean of its divisors is an integer number (2797949911).

Almost surely, 2^5595899821 is an apocalyptic number.

It is an amenable number.

5595899821 is a deficient number, since it is larger than the sum of its proper divisors (1).

5595899821 is an equidigital number, since it uses as much as digits as its factorization.

5595899821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664000, while the sum is 61.

The square root of 5595899821 is about 74805.7472457832. The cubic root of 5595899821 is about 1775.3744970312.

The spelling of 5595899821 in words is "five billion, five hundred ninety-five million, eight hundred ninety-nine thousand, eight hundred twenty-one".