2521014540 has 192 divisors, whose sum is σ = 7920944640. Its totient is φ = 593920000.

The previous prime is 2521014523. The next prime is 2521014569. The reversal of 2521014540 is 454101252.

It is a self number, because there is not a number n which added to its sum of digits gives 2521014540.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3932620 + ... + 3933260.

It is an arithmetic number, because the mean of its divisors is an integer number (41254920).

Almost surely, 2^2521014540 is an apocalyptic number.

2521014540 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 2521014540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3960472320).

2521014540 is an abundant number, since it is smaller than the sum of its proper divisors (5399930100).

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

2521014540 is a wasteful number, since it uses less digits than its factorization.

2521014540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 2521014540 is about 50209.7056354645. The cubic root of 2521014540 is about 1361.0010183612.

Adding to 2521014540 its reverse (454101252), we get a palindrome (2975115792).

The spelling of 2521014540 in words is "two billion, five hundred twenty-one million, fourteen thousand, five hundred forty".