5126565617 has 4 divisors (see below), whose sum is σ = 5396384880. Its totient is φ = 4856746356.

The previous prime is 5126565607. The next prime is 5126565641. The reversal of 5126565617 is 7165656215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5126565617 - 2⁶ = 5126565553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5126565607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134909603 + ... + 134909640.

It is an arithmetic number, because the mean of its divisors is an integer number (1349096220).

Almost surely, 2^5126565617 is an apocalyptic number.

It is an amenable number.

5126565617 is a deficient number, since it is larger than the sum of its proper divisors (269819263).

5126565617 is a wasteful number, since it uses less digits than its factorization.

5126565617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269819262.

The product of its digits is 378000, while the sum is 44.

The square root of 5126565617 is about 71600.0392248496. The cubic root of 5126565617 is about 1724.2841661391.

The spelling of 5126565617 in words is "five billion, one hundred twenty-six million, five hundred sixty-five thousand, six hundred seventeen".