2005257179 has 2 divisors, whose sum is σ = 2005257180. Its totient is φ = 2005257178.

The previous prime is 2005257161. The next prime is 2005257181. The reversal of 2005257179 is 9717525002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2005257179 is a prime.

Together with 2005257181, 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 (2005227179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002628589 + 1002628590.

It is an arithmetic number, because the mean of its divisors is an integer number (1002628590).

Almost surely, 2^2005257179 is an apocalyptic number.

2005257179 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005257179 is an equidigital number, since it uses as much as digits as its factorization.

2005257179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44100, while the sum is 38.

The square root of 2005257179 is about 44780.0980235640. The cubic root of 2005257179 is about 1261.0240224521.

The spelling of 2005257179 in words is "two billion, five million, two hundred fifty-seven thousand, one hundred seventy-nine".