2125716517 has 8 divisors (see below), whose sum is σ = 2171753856. Its totient is φ = 2079712992.

The previous prime is 2125716497. The next prime is 2125716529. The reversal of 2125716517 is 7156175212.

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

It is a cyclic number.

It is not a de Polignac number, because 2125716517 - 2⁷ = 2125716389 is a prime.

It is a super-2 number, since 2×2125716517² = 9037341421293222578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125716577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150553 + ... + 164065.

It is an arithmetic number, because the mean of its divisors is an integer number (271469232).

Almost surely, 2^2125716517 is an apocalyptic number.

It is an amenable number.

2125716517 is a deficient number, since it is larger than the sum of its proper divisors (46037339).

2125716517 is a wasteful number, since it uses less digits than its factorization.

2125716517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16907.

The product of its digits is 29400, while the sum is 37.

The square root of 2125716517 is about 46105.4933494914. The cubic root of 2125716517 is about 1285.7852784615.

The spelling of 2125716517 in words is "two billion, one hundred twenty-five million, seven hundred sixteen thousand, five hundred seventeen".