2505908 has 6 divisors (see below), whose sum is σ = 4385346. Its totient is φ = 1252952.

The previous prime is 2505901. The next prime is 2505917. The reversal of 2505908 is 8095052.

2505908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1909924 + 595984 = 1382^2 + 772^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505901) 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 as a sum of consecutive naturals, namely, 313235 + ... + 313242.

It is an arithmetic number, because the mean of its divisors is an integer number (730891).

2^2505908 is an apocalyptic number.

It is an amenable number.

2505908 is a deficient number, since it is larger than the sum of its proper divisors (1879438).

2505908 is a wasteful number, since it uses less digits than its factorization.

2505908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626481 (or 626479 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 2505908 is about 1583.0060012520. The cubic root of 2505908 is about 135.8277085840.

The spelling of 2505908 in words is "two million, five hundred five thousand, nine hundred eight".