2541455641 has 2 divisors, whose sum is σ = 2541455642. Its totient is φ = 2541455640.

The previous prime is 2541455639. The next prime is 2541455677. The reversal of 2541455641 is 1465541452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2536633225 + 4822416 = 50365^2 + 2196^2 .

It is a cyclic number.

It is not a de Polignac number, because 2541455641 - 2¹ = 2541455639 is a prime.

Together with 2541455639, 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 2541455641.

It is not a weakly prime, because it can be changed into another prime (2541435641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270727820 + 1270727821.

It is an arithmetic number, because the mean of its divisors is an integer number (1270727821).

Almost surely, 2^2541455641 is an apocalyptic number.

It is an amenable number.

2541455641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2541455641 is an equidigital number, since it uses as much as digits as its factorization.

2541455641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96000, while the sum is 37.

The square root of 2541455641 is about 50412.8519427338. The cubic root of 2541455641 is about 1364.6695816768.

The spelling of 2541455641 in words is "two billion, five hundred forty-one million, four hundred fifty-five thousand, six hundred forty-one".