2523905 has 16 divisors (see below), whose sum is σ = 3348864. Its totient is φ = 1816320.

The previous prime is 2523901. The next prime is 2523907. The reversal of 2523905 is 5093252.

It is not a de Polignac number, because 2523905 - 2² = 2523901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2523901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1310 + ... + 2600.

It is an arithmetic number, because the mean of its divisors is an integer number (209304).

2^2523905 is an apocalyptic number.

It is an amenable number.

2523905 is a deficient number, since it is larger than the sum of its proper divisors (824959).

2523905 is a wasteful number, since it uses less digits than its factorization.

2523905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 2523905 is about 1588.6802699096. The cubic root of 2523905 is about 136.1520969942.

The spelling of 2523905 in words is "two million, five hundred twenty-three thousand, nine hundred five".