2515213871 has 2 divisors, whose sum is σ = 2515213872. Its totient is φ = 2515213870.

The previous prime is 2515213849. The next prime is 2515213873. The reversal of 2515213871 is 1783125152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2515213871 - 2²⁶ = 2448105007 is a prime.

Together with 2515213873, 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 (2515213873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257606935 + 1257606936.

It is an arithmetic number, because the mean of its divisors is an integer number (1257606936).

Almost surely, 2^2515213871 is an apocalyptic number.

2515213871 is a deficient number, since it is larger than the sum of its proper divisors (1).

2515213871 is an equidigital number, since it uses as much as digits as its factorization.

2515213871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 35.

The square root of 2515213871 is about 50151.9079497480. The cubic root of 2515213871 is about 1359.9563623181.

The spelling of 2515213871 in words is "two billion, five hundred fifteen million, two hundred thirteen thousand, eight hundred seventy-one".