254705641 has 16 divisors (see below), whose sum is σ = 271659520. Its totient is φ = 238412160.

The previous prime is 254705639. The next prime is 254705663. The reversal of 254705641 is 146507452.

It is a cyclic number.

It is not a de Polignac number, because 254705641 - 2¹ = 254705639 is a prime.

It is the 15960-th Hogben number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 254705597 and 254705606.

It is not an unprimeable number, because it can be changed into a prime (254703641) by changing a digit.

It is a nontrivial repunit in base 15959.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144421 + ... + 146173.

It is an arithmetic number, because the mean of its divisors is an integer number (16978720).

Almost surely, 2^254705641 is an apocalyptic number.

It is an amenable number.

254705641 is a deficient number, since it is larger than the sum of its proper divisors (16953879).

254705641 is a wasteful number, since it uses less digits than its factorization.

254705641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 254705641 is about 15959.5000234970. The cubic root of 254705641 is about 633.8884731528. Note that the first 3 decimals are identical.

The spelling of 254705641 in words is "two hundred fifty-four million, seven hundred five thousand, six hundred forty-one".