2455905 has 16 divisors (see below), whose sum is σ = 4161024. Its totient is φ = 1232640.

The previous prime is 2455897. The next prime is 2455907. The reversal of 2455905 is 5095542.

2455905 = T₅₂₉ + T₅₃₀ + ... + T₅₄₅.

It is a happy number.

2455905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2455905 - 2³ = 2455897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2455907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4561 + ... + 5070.

It is an arithmetic number, because the mean of its divisors is an integer number (260064).

2^2455905 is an apocalyptic number.

It is an amenable number.

2455905 is a deficient number, since it is larger than the sum of its proper divisors (1705119).

2455905 is a wasteful number, since it uses less digits than its factorization.

2455905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9656.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 2455905 is about 1567.1327320939. The cubic root of 2455905 is about 134.9181946088.

The spelling of 2455905 in words is "two million, four hundred fifty-five thousand, nine hundred five".