254561365 has 4 divisors (see below), whose sum is σ = 305473644. Its totient is φ = 203649088.

The previous prime is 254561299. The next prime is 254561381. The reversal of 254561365 is 563165452.

254561365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 169442289 + 85119076 = 13017^2 + 9226^2 .

It is a cyclic number.

It is not a de Polignac number, because 254561365 - 2⁹ = 254560853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25456132 + ... + 25456141.

It is an arithmetic number, because the mean of its divisors is an integer number (76368411).

Almost surely, 2^254561365 is an apocalyptic number.

It is an amenable number.

254561365 is a deficient number, since it is larger than the sum of its proper divisors (50912279).

254561365 is an equidigital number, since it uses as much as digits as its factorization.

254561365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50912278.

The product of its digits is 108000, while the sum is 37.

The square root of 254561365 is about 15954.9793168152. The cubic root of 254561365 is about 633.7687635063.

The spelling of 254561365 in words is "two hundred fifty-four million, five hundred sixty-one thousand, three hundred sixty-five".