2541447641 has 2 divisors, whose sum is σ = 2541447642. Its totient is φ = 2541447640.

The previous prime is 2541447593. The next prime is 2541447757. The reversal of 2541447641 is 1467441452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1295640025 + 1245807616 = 35995^2 + 35296^2 .

It is a cyclic number.

It is not a de Polignac number, because 2541447641 - 2³⁰ = 1467705817 is a prime.

It is a super-2 number, since 2×2541447641² = 12917912223888929762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2541447595 and 2541447604.

It is not a weakly prime, because it can be changed into another prime (2541447241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270723820 + 1270723821.

It is an arithmetic number, because the mean of its divisors is an integer number (1270723821).

Almost surely, 2^2541447641 is an apocalyptic number.

It is an amenable number.

2541447641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2541447641 is an equidigital number, since it uses as much as digits as its factorization.

2541447641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 38.

The square root of 2541447641 is about 50412.7725978248. The cubic root of 2541447641 is about 1364.6681497719.

The spelling of 2541447641 in words is "two billion, five hundred forty-one million, four hundred forty-seven thousand, six hundred forty-one".