2520385871 has 2 divisors, whose sum is σ = 2520385872. Its totient is φ = 2520385870.

The previous prime is 2520385837. The next prime is 2520385873. The reversal of 2520385871 is 1785830252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2520385871 - 2²² = 2516191567 is a prime.

Together with 2520385873, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2520385873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260192935 + 1260192936.

It is an arithmetic number, because the mean of its divisors is an integer number (1260192936).

Almost surely, 2^2520385871 is an apocalyptic number.

2520385871 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520385871 is an equidigital number, since it uses as much as digits as its factorization.

2520385871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 2520385871 is about 50203.4448120844. Note that the first 3 decimals coincide. The cubic root of 2520385871 is about 1360.8878773661.

The spelling of 2520385871 in words is "two billion, five hundred twenty million, three hundred eighty-five thousand, eight hundred seventy-one".