2517700091 has 2 divisors, whose sum is σ = 2517700092. Its totient is φ = 2517700090.

The previous prime is 2517700067. The next prime is 2517700093. The reversal of 2517700091 is 1900077152.

2517700091 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 is a cyclic number.

It is not a de Polignac number, because 2517700091 - 2¹⁸ = 2517437947 is a prime.

Together with 2517700093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2517700093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1258850045 + 1258850046.

It is an arithmetic number, because the mean of its divisors is an integer number (1258850046).

Almost surely, 2^2517700091 is an apocalyptic number.

2517700091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2517700091 is an equidigital number, since it uses as much as digits as its factorization.

2517700091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 2517700091 is about 50176.6887209589. The cubic root of 2517700091 is about 1360.4043079579.

The spelling of 2517700091 in words is "two billion, five hundred seventeen million, seven hundred thousand, ninety-one".