2540321325 has 48 divisors (see below), whose sum is σ = 4671724800. Its totient is φ = 1353369600.

The previous prime is 2540321297. The next prime is 2540321341. The reversal of 2540321325 is 5231230452.

It is a happy number.

2540321325 is a `hidden beast` number, since 25 + 403 + 213 + 25 = 666.

It is not a de Polignac number, because 2540321325 - 2⁷ = 2540321197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 949740 + ... + 952410.

It is an arithmetic number, because the mean of its divisors is an integer number (97327600).

Almost surely, 2^2540321325 is an apocalyptic number.

2540321325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2540321325 is a deficient number, since it is larger than the sum of its proper divisors (2131403475).

2540321325 is a wasteful number, since it uses less digits than its factorization.

2540321325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4099 (or 4088 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2540321325 is about 50401.6004210184. The cubic root of 2540321325 is about 1364.4665226015.

Adding to 2540321325 its reverse (5231230452), we get a palindrome (7771551777).

The spelling of 2540321325 in words is "two billion, five hundred forty million, three hundred twenty-one thousand, three hundred twenty-five".