2520557316513 has 6 divisors (see below), whose sum is σ = 3640805012754. Its totient is φ = 1680371544336.

The previous prime is 2520557316509. The next prime is 2520557316547. The reversal of 2520557316513 is 3156137550252.

2520557316513 is a `hidden beast` number, since 2 + 5 + 2 + 0 + 5 + 573 + 1 + 65 + 13 = 666.

2520557316513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2487395813904 + 33161502609 = 1577148^2 + 182103^2 .

It is not a de Polignac number, because 2520557316513 - 2² = 2520557316509 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2520557316553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140030962020 + ... + 140030962037.

It is an arithmetic number, because the mean of its divisors is an integer number (606800835459).

Almost surely, 2^{2520557316513} is an apocalyptic number.

It is an amenable number.

2520557316513 is a deficient number, since it is larger than the sum of its proper divisors (1120247696241).

2520557316513 is a wasteful number, since it uses less digits than its factorization.

2520557316513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280061924063 (or 280061924060 counting only the distinct ones).

The product of its (nonzero) digits is 945000, while the sum is 45.

The spelling of 2520557316513 in words is "two trillion, five hundred twenty billion, five hundred fifty-seven million, three hundred sixteen thousand, five hundred thirteen".