254649617 has 4 divisors (see below), whose sum is σ = 254693376. Its totient is φ = 254605860.

The previous prime is 254649607. The next prime is 254649649. The reversal of 254649617 is 716946452.

254649617 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, 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 254649617 - 2⁶ = 254649553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254649607) 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, 11513 + ... + 25334.

It is an arithmetic number, because the mean of its divisors is an integer number (63673344).

Almost surely, 2^254649617 is an apocalyptic number.

It is an amenable number.

254649617 is a deficient number, since it is larger than the sum of its proper divisors (43759).

254649617 is an equidigital number, since it uses as much as digits as its factorization.

254649617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43758.

The product of its digits is 362880, while the sum is 44.

The square root of 254649617 is about 15957.7447341408. The cubic root of 254649617 is about 633.8419939154.

The spelling of 254649617 in words is "two hundred fifty-four million, six hundred forty-nine thousand, six hundred seventeen".