2505604305 has 8 divisors (see below), whose sum is σ = 4008966912. Its totient is φ = 1336322288.

The previous prime is 2505604303. The next prime is 2505604307. The reversal of 2505604305 is 5034065052.

2505604305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2505604303) and next prime (2505604307).

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 2505604305 - 2¹ = 2505604303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2505604301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83520129 + ... + 83520158.

It is an arithmetic number, because the mean of its divisors is an integer number (501120864).

Almost surely, 2^2505604305 is an apocalyptic number.

It is an amenable number.

2505604305 is a deficient number, since it is larger than the sum of its proper divisors (1503362607).

2505604305 is a wasteful number, since it uses less digits than its factorization.

2505604305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167040295.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 2505604305 is about 50056.0116769205. The cubic root of 2505604305 is about 1358.2222130318. Note that the first 4 decimals are identical.

Adding to 2505604305 its reverse (5034065052), we get a palindrome (7539669357).

The spelling of 2505604305 in words is "two billion, five hundred five million, six hundred four thousand, three hundred five".