2505706 has 16 divisors (see below), whose sum is σ = 4345920. Its totient is φ = 1061280.

The previous prime is 2505691. The next prime is 2505707. The reversal of 2505706 is 6075052.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2505707) by changing a digit.

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, 241 + ... + 2251.

It is an arithmetic number, because the mean of its divisors is an integer number (271620).

2^2505706 is an apocalyptic number.

2505706 is a deficient number, since it is larger than the sum of its proper divisors (1840214).

2505706 is a wasteful number, since it uses less digits than its factorization.

2505706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 2505706 is about 1582.9421973022. The cubic root of 2505706 is about 135.8240588178.

The spelling of 2505706 in words is "two million, five hundred five thousand, seven hundred six".