2566252117 has 16 divisors (see below), whose sum is σ = 3145984128. Its totient is φ = 2059865280.

The previous prime is 2566252069. The next prime is 2566252177. The reversal of 2566252117 is 7112526652.

It is not a de Polignac number, because 2566252117 - 2²³ = 2557863509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566252177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386838 + ... + 393415.

It is an arithmetic number, because the mean of its divisors is an integer number (196624008).

Almost surely, 2^2566252117 is an apocalyptic number.

It is an amenable number.

2566252117 is a deficient number, since it is larger than the sum of its proper divisors (579732011).

2566252117 is a wasteful number, since it uses less digits than its factorization.

2566252117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780300.

The product of its digits is 50400, while the sum is 37.

The square root of 2566252117 is about 50658.1890418519. The cubic root of 2566252117 is about 1369.0934946533.

Adding to 2566252117 its reverse (7112526652), we get a palindrome (9678778769).

The spelling of 2566252117 in words is "two billion, five hundred sixty-six million, two hundred fifty-two thousand, one hundred seventeen".