2530525520 has 20 divisors (see below), whose sum is σ = 5883472020. Its totient is φ = 1012210176.

The previous prime is 2530525513. The next prime is 2530525541. The reversal of 2530525520 is 255250352.

It can be written as a sum of positive squares in 2 ways, for example, as 993258256 + 1537267264 = 31516^2 + 39208^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15815705 + ... + 15815864.

It is an arithmetic number, because the mean of its divisors is an integer number (294173601).

Almost surely, 2^2530525520 is an apocalyptic number.

2530525520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2530525520 is an abundant number, since it is smaller than the sum of its proper divisors (3352946500).

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

2530525520 is a wasteful number, since it uses less digits than its factorization.

2530525520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31631582 (or 31631576 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 2530525520 is about 50304.3290383641. The cubic root of 2530525520 is about 1362.7104107333.

Adding to 2530525520 its reverse (255250352), we get a palindrome (2785775872).

The spelling of 2530525520 in words is "two billion, five hundred thirty million, five hundred twenty-five thousand, five hundred twenty".