2604122505 has 24 divisors (see below), whose sum is σ = 4515056520. Its totient is φ = 1388482560.

The previous prime is 2604122497. The next prime is 2604122533. The reversal of 2604122505 is 5052214062.

2604122505 is a `hidden beast` number, since 2 + 604 + 1 + 2 + 2 + 50 + 5 = 666.

2604122505 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5875776 + 2598246729 = 2424^2 + 50973^2 .

It is not a de Polignac number, because 2604122505 - 2³ = 2604122497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245961 + ... + 256329.

It is an arithmetic number, because the mean of its divisors is an integer number (188127355).

Almost surely, 2^2604122505 is an apocalyptic number.

It is an amenable number.

2604122505 is a deficient number, since it is larger than the sum of its proper divisors (1910934015).

2604122505 is a wasteful number, since it uses less digits than its factorization.

2604122505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15961 (or 15958 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2604122505 is about 51030.6036119503. The cubic root of 2604122505 is about 1375.7952433362.

Adding to 2604122505 its reverse (5052214062), we get a palindrome (7656336567).

The spelling of 2604122505 in words is "two billion, six hundred four million, one hundred twenty-two thousand, five hundred five".