254659613 has 4 divisors (see below), whose sum is σ = 274248828. Its totient is φ = 235070400.

The previous prime is 254659607. The next prime is 254659619. The reversal of 254659613 is 316956452.

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

It is an interprime number because it is at equal distance from previous prime (254659607) and next prime (254659619).

It can be written as a sum of positive squares in 2 ways, for example, as 37185604 + 217474009 = 6098^2 + 14747^2 .

It is a cyclic number.

It is not a de Polignac number, because 254659613 - 2⁴ = 254659597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254659619) 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, 9794588 + ... + 9794613.

It is an arithmetic number, because the mean of its divisors is an integer number (68562207).

Almost surely, 2^254659613 is an apocalyptic number.

It is an amenable number.

254659613 is a deficient number, since it is larger than the sum of its proper divisors (19589215).

254659613 is a wasteful number, since it uses less digits than its factorization.

254659613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19589214.

The product of its digits is 194400, while the sum is 41.

The square root of 254659613 is about 15958.0579332198. The cubic root of 254659613 is about 633.8502874048.

The spelling of 254659613 in words is "two hundred fifty-four million, six hundred fifty-nine thousand, six hundred thirteen".