2540255 has 8 divisors (see below), whose sum is σ = 3153600. Its totient is φ = 1962016.

The previous prime is 2540249. The next prime is 2540261. The reversal of 2540255 is 5520452.

It is an interprime number because it is at equal distance from previous prime (2540249) and next prime (2540261).

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

It is a cyclic number.

It is not a de Polignac number, because 2540255 - 2¹⁰ = 2539231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2540255.

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 7 ways as a sum of consecutive naturals, for example, 8615 + ... + 8904.

It is an arithmetic number, because the mean of its divisors is an integer number (394200).

2^2540255 is an apocalyptic number.

2540255 is a deficient number, since it is larger than the sum of its proper divisors (613345).

2540255 is a wasteful number, since it uses less digits than its factorization.

2540255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17553.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 2540255 is about 1593.8177436583. The cubic root of 2540255 is about 136.4454647591.

The spelling of 2540255 in words is "two million, five hundred forty thousand, two hundred fifty-five".