2540540913 has 8 divisors (see below), whose sum is σ = 3388171776. Its totient is φ = 1693302000.

The previous prime is 2540540909. The next prime is 2540540929. The reversal of 2540540913 is 3190450452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2540540913 - 2² = 2540540909 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2540440913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82513 + ... + 109038.

It is an arithmetic number, because the mean of its divisors is an integer number (423521472).

Almost surely, 2^2540540913 is an apocalyptic number.

It is an amenable number.

2540540913 is a deficient number, since it is larger than the sum of its proper divisors (847630863).

2540540913 is a wasteful number, since it uses less digits than its factorization.

2540540913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195975.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 2540540913 is about 50403.7787571527. The cubic root of 2540540913 is about 1364.5058367674.

The spelling of 2540540913 in words is "two billion, five hundred forty million, five hundred forty thousand, nine hundred thirteen".