2540925 has 36 divisors (see below), whose sum is σ = 4758624. Its totient is φ = 1293600.

The previous prime is 2540903. The next prime is 2540933. The reversal of 2540925 is 5290452.

It is not a de Polignac number, because 2540925 - 2⁹ = 2540413 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4930 + ... + 5420.

It is an arithmetic number, because the mean of its divisors is an integer number (132184).

2^2540925 is an apocalyptic number.

2540925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2540925 is a deficient number, since it is larger than the sum of its proper divisors (2217699).

2540925 is a wasteful number, since it uses less digits than its factorization.

2540925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 2540925 is about 1594.0279169450. The cubic root of 2540925 is about 136.4574596737.

The spelling of 2540925 in words is "two million, five hundred forty thousand, nine hundred twenty-five".