2520606281 has 2 divisors, whose sum is σ = 2520606282. Its totient is φ = 2520606280.

The previous prime is 2520606259. The next prime is 2520606289. The reversal of 2520606281 is 1826060252.

2520606281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2500500025 + 20106256 = 50005^2 + 4484^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520606281 - 2⁶ = 2520606217 is a prime.

It is a super-2 number, since 2×2520606281² = 12706912047633301922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2520606289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260303140 + 1260303141.

It is an arithmetic number, because the mean of its divisors is an integer number (1260303141).

Almost surely, 2^2520606281 is an apocalyptic number.

It is an amenable number.

2520606281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520606281 is an equidigital number, since it uses as much as digits as its factorization.

2520606281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 2520606281 is about 50205.6399321829. The cubic root of 2520606281 is about 1360.9275464974.

The spelling of 2520606281 in words is "two billion, five hundred twenty million, six hundred six thousand, two hundred eighty-one".