2505566506 has 16 divisors (see below), whose sum is σ = 3880954368. Its totient is φ = 1211943600.

The previous prime is 2505566431. The next prime is 2505566509. The reversal of 2505566506 is 6056655052.

It is not an unprimeable number, because it can be changed into a prime (2505566509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237316 + ... + 247648.

It is an arithmetic number, because the mean of its divisors is an integer number (242559648).

Almost surely, 2^2505566506 is an apocalyptic number.

2505566506 is a deficient number, since it is larger than the sum of its proper divisors (1375387862).

2505566506 is a wasteful number, since it uses less digits than its factorization.

2505566506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14277.

The product of its (nonzero) digits is 270000, while the sum is 40.

The square root of 2505566506 is about 50055.6341084598. The cubic root of 2505566506 is about 1358.2153830494.

The spelling of 2505566506 in words is "two billion, five hundred five million, five hundred sixty-six thousand, five hundred six".