2540025321 has 16 divisors (see below), whose sum is σ = 3481833600. Its totient is φ = 1645878528.

The previous prime is 2540025307. The next prime is 2540025337. The reversal of 2540025321 is 1235200452.

It is not a de Polignac number, because 2540025321 - 2¹⁴ = 2540008937 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2540025291 and 2540025300.

It is not an unprimeable number, because it can be changed into a prime (2540025391) 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 15 ways as a sum of consecutive naturals, for example, 100660 + ... + 123338.

It is an arithmetic number, because the mean of its divisors is an integer number (217614600).

Almost surely, 2^2540025321 is an apocalyptic number.

It is an amenable number.

2540025321 is a deficient number, since it is larger than the sum of its proper divisors (941808279).

2540025321 is a wasteful number, since it uses less digits than its factorization.

2540025321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23728.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2540025321 is about 50398.6638810991. The cubic root of 2540025321 is about 1364.4135236320.

Adding to 2540025321 its reverse (1235200452), we get a palindrome (3775225773).

It can be divided in two parts, 25400 and 25321, that added together give a triangular number (50721 = T₃₁₈).

The spelling of 2540025321 in words is "two billion, five hundred forty million, twenty-five thousand, three hundred twenty-one".