2515666325873 has 2 divisors, whose sum is σ = 2515666325874. Its totient is φ = 2515666325872.

The previous prime is 2515666325791. The next prime is 2515666325881. The reversal of 2515666325873 is 3785236665152.

2515666325873 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., 1949729090929 + 565937234944 = 1396327^2 + 752288^2 .

It is a cyclic number.

It is not a de Polignac number, because 2515666325873 - 2¹⁰ = 2515666324849 is a prime.

It is not a weakly prime, because it can be changed into another prime (2515666325773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257833162936 + 1257833162937.

It is an arithmetic number, because the mean of its divisors is an integer number (1257833162937).

Almost surely, 2^{2515666325873} is an apocalyptic number.

It is an amenable number.

2515666325873 is a deficient number, since it is larger than the sum of its proper divisors (1).

2515666325873 is an equidigital number, since it uses as much as digits as its factorization.

2515666325873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432000, while the sum is 59.

The spelling of 2515666325873 in words is "two trillion, five hundred fifteen billion, six hundred sixty-six million, three hundred twenty-five thousand, eight hundred seventy-three".