2505520706 has 16 divisors (see below), whose sum is σ = 4071622464. Its totient is φ = 1149467664.

The previous prime is 2505520691. The next prime is 2505520711. The reversal of 2505520706 is 6070255052.

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, 284180 + ... + 292863.

It is an arithmetic number, because the mean of its divisors is an integer number (254476404).

Almost surely, 2^2505520706 is an apocalyptic number.

2505520706 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2505520706 is a deficient number, since it is larger than the sum of its proper divisors (1566101758).

2505520706 is a wasteful number, since it uses less digits than its factorization.

2505520706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577225.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 2505520706 is about 50055.1766154111. The cubic root of 2505520706 is about 1358.2071072572.

Adding to 2505520706 its reverse (6070255052), we get a palindrome (8575775758).

The spelling of 2505520706 in words is "two billion, five hundred five million, five hundred twenty thousand, seven hundred six".