2520260720 has 20 divisors (see below), whose sum is σ = 5859606360. Its totient is φ = 1008104256.

The previous prime is 2520260671. The next prime is 2520260741. The reversal of 2520260720 is 270620252.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 2520260720.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15751550 + ... + 15751709.

It is an arithmetic number, because the mean of its divisors is an integer number (292980318).

Almost surely, 2^2520260720 is an apocalyptic number.

2520260720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2520260720 is an abundant number, since it is smaller than the sum of its proper divisors (3339345640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2520260720 is a wasteful number, since it uses less digits than its factorization.

2520260720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31503272 (or 31503266 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 2520260720 is about 50202.1983582393. The cubic root of 2520260720 is about 1360.8653518077.

Adding to 2520260720 its reverse (270620252), we get a palindrome (2790880972).

The spelling of 2520260720 in words is "two billion, five hundred twenty million, two hundred sixty thousand, seven hundred twenty".