2540244531 has 16 divisors (see below), whose sum is σ = 3822312960. Its totient is φ = 1486453920.

The previous prime is 2540244523. The next prime is 2540244569. The reversal of 2540244531 is 1354420452.

2540244531 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2540244531 - 2³ = 2540244523 is a prime.

It is a super-3 number, since 3×2540244531³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2540244571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1326235 + ... + 1328148.

It is an arithmetic number, because the mean of its divisors is an integer number (238894560).

Almost surely, 2^2540244531 is an apocalyptic number.

2540244531 is a deficient number, since it is larger than the sum of its proper divisors (1282068429).

2540244531 is a wasteful number, since it uses less digits than its factorization.

2540244531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2654426.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2540244531 is about 50400.8385942139. The cubic root of 2540244531 is about 1364.4527731732.

Adding to 2540244531 its reverse (1354420452), we get a palindrome (3894664983).

The spelling of 2540244531 in words is "two billion, five hundred forty million, two hundred forty-four thousand, five hundred thirty-one".