256553227 has 16 divisors (see below), whose sum is σ = 311520960. Its totient is φ = 206575488.

The previous prime is 256553207. The next prime is 256553233. The reversal of 256553227 is 722355652.

256553227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 256553227 - 2²³ = 248164619 is a prime.

It is a super-2 number, since 2×256553227² = 131639116568227058, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256553207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9568 + ... + 24589.

It is an arithmetic number, because the mean of its divisors is an integer number (19470060).

Almost surely, 2^256553227 is an apocalyptic number.

256553227 is a deficient number, since it is larger than the sum of its proper divisors (54967733).

256553227 is a wasteful number, since it uses less digits than its factorization.

256553227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34230.

The product of its digits is 126000, while the sum is 37.

The square root of 256553227 is about 16017.2790136153. The cubic root of 256553227 is about 635.4174839518.

It can be divided in two parts, 25655 and 3227, that added together give a palindrome (28882).

The spelling of 256553227 in words is "two hundred fifty-six million, five hundred fifty-three thousand, two hundred twenty-seven".