2541645413 has 4 divisors (see below), whose sum is σ = 2551309728. Its totient is φ = 2531981100.

The previous prime is 2541645389. The next prime is 2541645437. The reversal of 2541645413 is 3145461452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2541645389) and next prime (2541645437).

It is a cyclic number.

It is not a de Polignac number, because 2541645413 - 2⁶ = 2541645349 is a prime.

It is a super-2 number, since 2×2541645413² = 12919922810847881138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2541645493) 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, 4831763 + ... + 4832288.

It is an arithmetic number, because the mean of its divisors is an integer number (637827432).

Almost surely, 2^2541645413 is an apocalyptic number.

It is an amenable number.

2541645413 is a deficient number, since it is larger than the sum of its proper divisors (9664315).

2541645413 is an equidigital number, since it uses as much as digits as its factorization.

2541645413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9664314.

The product of its digits is 57600, while the sum is 35.

The square root of 2541645413 is about 50414.7340863760. The cubic root of 2541645413 is about 1364.7035477271.

The spelling of 2541645413 in words is "two billion, five hundred forty-one million, six hundred forty-five thousand, four hundred thirteen".