256550223 has 8 divisors (see below), whose sum is σ = 342286000. Its totient is φ = 170923968.

The previous prime is 256550219. The next prime is 256550227. The reversal of 256550223 is 322055652.

It is an interprime number because it is at equal distance from previous prime (256550219) and next prime (256550227).

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

It is not a de Polignac number, because 256550223 - 2² = 256550219 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 (256550227) 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, 21748 + ... + 31401.

It is an arithmetic number, because the mean of its divisors is an integer number (42785750).

Almost surely, 2^256550223 is an apocalyptic number.

256550223 is a deficient number, since it is larger than the sum of its proper divisors (85735777).

256550223 is a wasteful number, since it uses less digits than its factorization.

256550223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54761.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 256550223 is about 16017.1852396106. The cubic root of 256550223 is about 635.4150038926.

The spelling of 256550223 in words is "two hundred fifty-six million, five hundred fifty thousand, two hundred twenty-three".