2521206841 has 2 divisors, whose sum is σ = 2521206842. Its totient is φ = 2521206840.

The previous prime is 2521206839. The next prime is 2521206887. The reversal of 2521206841 is 1486021252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1901396025 + 619810816 = 43605^2 + 24896^2 .

It is a cyclic number.

It is not a de Polignac number, because 2521206841 - 2¹ = 2521206839 is a prime.

Together with 2521206839, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2521206041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260603420 + 1260603421.

It is an arithmetic number, because the mean of its divisors is an integer number (1260603421).

Almost surely, 2^2521206841 is an apocalyptic number.

It is an amenable number.

2521206841 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521206841 is an equidigital number, since it uses as much as digits as its factorization.

2521206841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 2521206841 is about 50211.6205773126. The cubic root of 2521206841 is about 1361.0356228427.

The spelling of 2521206841 in words is "two billion, five hundred twenty-one million, two hundred six thousand, eight hundred forty-one".