2517670121 has 2 divisors, whose sum is σ = 2517670122. Its totient is φ = 2517670120.

The previous prime is 2517670087. The next prime is 2517670147. The reversal of 2517670121 is 1210767152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2516426896 + 1243225 = 50164^2 + 1115^2 .

It is a cyclic number.

It is not a de Polignac number, because 2517670121 - 2¹⁰ = 2517669097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2517670151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1258835060 + 1258835061.

It is an arithmetic number, because the mean of its divisors is an integer number (1258835061).

Almost surely, 2^2517670121 is an apocalyptic number.

It is an amenable number.

2517670121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2517670121 is an equidigital number, since it uses as much as digits as its factorization.

2517670121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 2517670121 is about 50176.3900754130. The cubic root of 2517670121 is about 1360.3989099786.

The spelling of 2517670121 in words is "two billion, five hundred seventeen million, six hundred seventy thousand, one hundred twenty-one".