2604025505 has 4 divisors (see below), whose sum is σ = 3124830612. Its totient is φ = 2083220400.

The previous prime is 2604025493. The next prime is 2604025537. The reversal of 2604025505 is 5055204062.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 978000529 + 1626024976 = 31273^2 + 40324^2 .

It is not a de Polignac number, because 2604025505 - 2¹⁸ = 2603763361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260402546 + ... + 260402555.

It is an arithmetic number, because the mean of its divisors is an integer number (781207653).

Almost surely, 2^2604025505 is an apocalyptic number.

It is an amenable number.

2604025505 is a deficient number, since it is larger than the sum of its proper divisors (520805107).

2604025505 is an equidigital number, since it uses as much as digits as its factorization.

2604025505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520805106.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 2604025505 is about 51029.6531930210. The cubic root of 2604025505 is about 1375.7781609607.

Adding to 2604025505 its reverse (5055204062), we get a palindrome (7659229567).

The spelling of 2604025505 in words is "two billion, six hundred four million, twenty-five thousand, five hundred five".