2520604647 has 24 divisors (see below), whose sum is σ = 3995671680. Its totient is φ = 1518481680.

The previous prime is 2520604633. The next prime is 2520604679. The reversal of 2520604647 is 7464060252.

2520604647 is a `hidden beast` number, since 2 + 5 + 2 + 0 + 6 + 0 + 4 + 647 = 666.

It is not a de Polignac number, because 2520604647 - 2⁴ = 2520604631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520604147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59697 + ... + 92762.

It is an arithmetic number, because the mean of its divisors is an integer number (166486320).

Almost surely, 2^2520604647 is an apocalyptic number.

2520604647 is a deficient number, since it is larger than the sum of its proper divisors (1475067033).

2520604647 is a wasteful number, since it uses less digits than its factorization.

2520604647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152643 (or 152640 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 2520604647 is about 50205.6236591081. The cubic root of 2520604647 is about 1360.9272524205.

Adding to 2520604647 its reverse (7464060252), we get a palindrome (9984664899).

The spelling of 2520604647 in words is "two billion, five hundred twenty million, six hundred four thousand, six hundred forty-seven".