2540532520 has 32 divisors (see below), whose sum is σ = 5719213800. Its totient is φ = 1015676928.

The previous prime is 2540532473. The next prime is 2540532523. The reversal of 2540532520 is 252350452.

It can be written as a sum of positive squares in 4 ways, for example, as 2414149956 + 126382564 = 49134^2 + 11242^2 .

It is not an unprimeable number, because it can be changed into a prime (2540532523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64936 + ... + 96424.

Almost surely, 2^2540532520 is an apocalyptic number.

2540532520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2540532520 is an abundant number, since it is smaller than the sum of its proper divisors (3178681280).

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

2540532520 is a wasteful number, since it uses less digits than its factorization.

2540532520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33517 (or 33513 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 2540532520 is about 50403.6954994373. The cubic root of 2540532520 is about 1364.5043341595.

Adding to 2540532520 its reverse (252350452), we get a palindrome (2792882972).

The spelling of 2540532520 in words is "two billion, five hundred forty million, five hundred thirty-two thousand, five hundred twenty".