254694661 has 6 divisors (see below), whose sum is σ = 275793810. Its totient is φ = 235102608.

The previous prime is 254694641. The next prime is 254694683. The reversal of 254694661 is 166496452.

254694661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 14630625 + 240064036 = 3825^2 + 15494^2 .

It is not a de Polignac number, because 254694661 - 2⁷ = 254694533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254694611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 753366 + ... + 753703.

It is an arithmetic number, because the mean of its divisors is an integer number (45965635).

Almost surely, 2^254694661 is an apocalyptic number.

It is an amenable number.

254694661 is a deficient number, since it is larger than the sum of its proper divisors (21099149).

254694661 is a wasteful number, since it uses less digits than its factorization.

254694661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507095 (or 1507082 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The square root of 254694661 is about 15959.1560240509. The cubic root of 254694661 is about 633.8793643434.

The spelling of 254694661 in words is "two hundred fifty-four million, six hundred ninety-four thousand, six hundred sixty-one".