2520539520 has 128 divisors (see below), whose sum is σ = 8166307680. Its totient is φ = 661094400.

The previous prime is 2520539507. The next prime is 2520539521. The reversal of 2520539520 is 259350252.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520539521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106360 + ... + 127880.

Almost surely, 2^2520539520 is an apocalyptic number.

2520539520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2520539520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4083153840).

2520539520 is an abundant number, since it is smaller than the sum of its proper divisors (5645768160).

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

2520539520 is a wasteful number, since it uses less digits than its factorization.

2520539520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21604 (or 21592 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 2520539520 is about 50204.9750522794. The cubic root of 2520539520 is about 1360.9155311757.

Adding to 2520539520 its reverse (259350252), we get a palindrome (2779889772).

The spelling of 2520539520 in words is "two billion, five hundred twenty million, five hundred thirty-nine thousand, five hundred twenty".