2005517941 has 8 divisors (see below), whose sum is σ = 2297494080. Its totient is φ = 1714910208.

The previous prime is 2005517879. The next prime is 2005517947. The reversal of 2005517941 is 1497155002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2005517941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2005517897 and 2005517906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005517947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338956 + ... + 344821.

It is an arithmetic number, because the mean of its divisors is an integer number (287186760).

Almost surely, 2^2005517941 is an apocalyptic number.

It is an amenable number.

2005517941 is a deficient number, since it is larger than the sum of its proper divisors (291976139).

2005517941 is an equidigital number, since it uses as much as digits as its factorization.

2005517941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684203.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 2005517941 is about 44783.0095125372. The cubic root of 2005517941 is about 1261.0786809264.

The spelling of 2005517941 in words is "two billion, five million, five hundred seventeen thousand, nine hundred forty-one".