2826520421 has 2 divisors, whose sum is σ = 2826520422. Its totient is φ = 2826520420.

The previous prime is 2826520399. The next prime is 2826520423. The reversal of 2826520421 is 1240256282.

2826520421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2755725025 + 70795396 = 52495^2 + 8414^2 .

It is a cyclic number.

It is not a de Polignac number, because 2826520421 - 2¹⁸ = 2826258277 is a prime.

It is a Sophie Germain prime.

Together with 2826520423, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2826520423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1413260210 + 1413260211.

It is an arithmetic number, because the mean of its divisors is an integer number (1413260211).

Almost surely, 2^2826520421 is an apocalyptic number.

It is an amenable number.

2826520421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2826520421 is an equidigital number, since it uses as much as digits as its factorization.

2826520421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 2826520421 is about 53165.0300573601. The cubic root of 2826520421 is about 1413.8957069803.

The spelling of 2826520421 in words is "two billion, eight hundred twenty-six million, five hundred twenty thousand, four hundred twenty-one".