2567917121 has 16 divisors (see below), whose sum is σ = 3255828480. Its totient is φ = 1967056080.

The previous prime is 2567917091. The next prime is 2567917141. The reversal of 2567917121 is 1217197652.

It is not a de Polignac number, because 2567917121 - 2⁶ = 2567917057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2567917141) 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, 278081 + ... + 287166.

It is an arithmetic number, because the mean of its divisors is an integer number (203489280).

Almost surely, 2^2567917121 is an apocalyptic number.

It is an amenable number.

2567917121 is a deficient number, since it is larger than the sum of its proper divisors (687911359).

2567917121 is a wasteful number, since it uses less digits than its factorization.

2567917121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565324.

The product of its digits is 52920, while the sum is 41.

The square root of 2567917121 is about 50674.6200873771. The cubic root of 2567917121 is about 1369.3895234173.

The spelling of 2567917121 in words is "two billion, five hundred sixty-seven million, nine hundred seventeen thousand, one hundred twenty-one".