2506305 has 8 divisors (see below), whose sum is σ = 4010112. Its totient is φ = 1336688.

The previous prime is 2506291. The next prime is 2506313. The reversal of 2506305 is 5036052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2506305 - 2⁹ = 2505793 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83529 + ... + 83558.

It is an arithmetic number, because the mean of its divisors is an integer number (501264).

2^2506305 is an apocalyptic number.

It is an amenable number.

2506305 is a deficient number, since it is larger than the sum of its proper divisors (1503807).

2506305 is a wasteful number, since it uses less digits than its factorization.

2506305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167095.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 2506305 is about 1583.1313906306. The cubic root of 2506305 is about 135.8348810677.

It can be divided in two parts, 250 and 6305, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 2506305 in words is "two million, five hundred six thousand, three hundred five".