2505716 has 12 divisors (see below), whose sum is σ = 4536420. Its totient is φ = 1209600.

The previous prime is 2505707. The next prime is 2505743. The reversal of 2505716 is 6175052.

It can be written as a sum of positive squares in 2 ways, for example, as 1833316 + 672400 = 1354^2 + 820^2 .

It is a super-2 number, since 2×2505716² = 12557225345312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10685 + ... + 10916.

It is an arithmetic number, because the mean of its divisors is an integer number (378035).

2^2505716 is an apocalyptic number.

It is an amenable number.

2505716 is a deficient number, since it is larger than the sum of its proper divisors (2030704).

2505716 is a wasteful number, since it uses less digits than its factorization.

2505716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21634 (or 21632 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 2505716 is about 1582.9453559741. The cubic root of 2505716 is about 135.8242395039.

The spelling of 2505716 in words is "two million, five hundred five thousand, seven hundred sixteen".