2541545459 has 4 divisors (see below), whose sum is σ = 2541937200. Its totient is φ = 2541153720.

The previous prime is 2541545423. The next prime is 2541545467. The reversal of 2541545459 is 9545451452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2541545459 - 2¹² = 2541541363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2541545159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185972 + ... + 199169.

It is an arithmetic number, because the mean of its divisors is an integer number (635484300).

Almost surely, 2^2541545459 is an apocalyptic number.

2541545459 is a deficient number, since it is larger than the sum of its proper divisors (391741).

2541545459 is an equidigital number, since it uses as much as digits as its factorization.

2541545459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391740.

The product of its digits is 720000, while the sum is 44.

The square root of 2541545459 is about 50413.7427592913. The cubic root of 2541545459 is about 1364.6856578245.

The spelling of 2541545459 in words is "two billion, five hundred forty-one million, five hundred forty-five thousand, four hundred fifty-nine".