256614655 has 8 divisors (see below), whose sum is σ = 335931984. Its totient is φ = 186628800.

The previous prime is 256614653. The next prime is 256614691. The reversal of 256614655 is 556416652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 256614655 - 2¹ = 256614653 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 (256614653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2332806 + ... + 2332915.

It is an arithmetic number, because the mean of its divisors is an integer number (41991498).

Almost surely, 2^256614655 is an apocalyptic number.

256614655 is a deficient number, since it is larger than the sum of its proper divisors (79317329).

256614655 is a wasteful number, since it uses less digits than its factorization.

256614655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4665737.

The product of its digits is 216000, while the sum is 40.

The square root of 256614655 is about 16019.1964530060. The cubic root of 256614655 is about 635.4681937802.

The spelling of 256614655 in words is "two hundred fifty-six million, six hundred fourteen thousand, six hundred fifty-five".