2505506 has 12 divisors (see below), whose sum is σ = 3839046. Its totient is φ = 1226160.

The previous prime is 2505499. The next prime is 2505527. The reversal of 2505506 is 6055052.

It can be written as a sum of positive squares in only one way, i.e., 2076481 + 429025 = 1441^2 + 655^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19061 + ... + 19191.

2^2505506 is an apocalyptic number.

2505506 is a deficient number, since it is larger than the sum of its proper divisors (1333540).

2505506 is an equidigital number, since it uses as much as digits as its factorization.

2505506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 2505506 is about 1582.8790225409. The cubic root of 2505506 is about 135.8204449948.

The spelling of 2505506 in words is "two million, five hundred five thousand, five hundred six".