2521232540 has 36 divisors (see below), whose sum is σ = 5441611896. Its totient is φ = 981225792.

The previous prime is 2521232491. The next prime is 2521232551. The reversal of 2521232540 is 452321252.

2521232540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2521232540² = 12713227041509703200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18662 + ... + 73421.

It is an arithmetic number, because the mean of its divisors is an integer number (151155886).

Almost surely, 2^2521232540 is an apocalyptic number.

2521232540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2521232540 is an abundant number, since it is smaller than the sum of its proper divisors (2920379356).

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

2521232540 is a wasteful number, since it uses less digits than its factorization.

2521232540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92166 (or 92127 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2521232540 is about 50211.8764835572. The cubic root of 2521232540 is about 1361.0402472333.

Adding to 2521232540 its reverse (452321252), we get a palindrome (2973553792).

The spelling of 2521232540 in words is "two billion, five hundred twenty-one million, two hundred thirty-two thousand, five hundred forty".