254664865 has 16 divisors (see below), whose sum is σ = 376121088. Its totient is φ = 161194176.

The previous prime is 254664857. The next prime is 254664869. The reversal of 254664865 is 568466452.

254664865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 254664865 - 2³ = 254664857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (254664869) 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, 279397 + ... + 280306.

It is an arithmetic number, because the mean of its divisors is an integer number (23507568).

Almost surely, 2^254664865 is an apocalyptic number.

It is an amenable number.

254664865 is a deficient number, since it is larger than the sum of its proper divisors (121456223).

254664865 is a wasteful number, since it uses less digits than its factorization.

254664865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559728.

The product of its digits is 1382400, while the sum is 46.

The square root of 254664865 is about 15958.2224887360. Note that the first 3 decimals coincide. The cubic root of 254664865 is about 633.8546448014.

The spelling of 254664865 in words is "two hundred fifty-four million, six hundred sixty-four thousand, eight hundred sixty-five".