2521240541513 has 2 divisors, whose sum is σ = 2521240541514. Its totient is φ = 2521240541512.

The previous prime is 2521240541503. The next prime is 2521240541537. The reversal of 2521240541513 is 3151450421252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2510364554569 + 10875986944 = 1584413^2 + 104288^2 .

It is a cyclic number.

It is not a de Polignac number, because 2521240541513 - 2⁸ = 2521240541257 is a prime.

It is not a weakly prime, because it can be changed into another prime (2521240541503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260620270756 + 1260620270757.

It is an arithmetic number, because the mean of its divisors is an integer number (1260620270757).

Almost surely, 2^{2521240541513} is an apocalyptic number.

It is an amenable number.

2521240541513 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521240541513 is an equidigital number, since it uses as much as digits as its factorization.

2521240541513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 2521240541513 its reverse (3151450421252), we get a palindrome (5672690962765).

The spelling of 2521240541513 in words is "two trillion, five hundred twenty-one billion, two hundred forty million, five hundred forty-one thousand, five hundred thirteen".