2105725017 has 32 divisors (see below), whose sum is σ = 3088014336. Its totient is φ = 1265774400.

The previous prime is 2105725001. The next prime is 2105725057. The reversal of 2105725017 is 7105275012.

It is not a de Polignac number, because 2105725017 - 2⁴ = 2105725001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2105725057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2872383 + ... + 2873115.

It is an arithmetic number, because the mean of its divisors is an integer number (96500448).

Almost surely, 2^2105725017 is an apocalyptic number.

It is an amenable number.

2105725017 is a deficient number, since it is larger than the sum of its proper divisors (982289319).

2105725017 is a wasteful number, since it uses less digits than its factorization.

2105725017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341.

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 2105725017 is about 45888.1794910193. The cubic root of 2105725017 is about 1281.7418134532.

The spelling of 2105725017 in words is "two billion, one hundred five million, seven hundred twenty-five thousand, seventeen".