256026241 has 4 divisors (see below), whose sum is σ = 264285184. Its totient is φ = 247767300.

The previous prime is 256026233. The next prime is 256026259. The reversal of 256026241 is 142620652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 256026241 - 2³ = 256026233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256020241) 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, 4129425 + ... + 4129486.

It is an arithmetic number, because the mean of its divisors is an integer number (66071296).

Almost surely, 2^256026241 is an apocalyptic number.

It is an amenable number.

256026241 is a deficient number, since it is larger than the sum of its proper divisors (8258943).

256026241 is an equidigital number, since it uses as much as digits as its factorization.

256026241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8258942.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 256026241 is about 16000.8200102370. The cubic root of 256026241 is about 634.9821153539.

Adding to 256026241 its product of nonzero digits (5760), we get a square (256032001 = 16001²).

Adding to 256026241 its reverse (142620652), we get a palindrome (398646893).

The spelling of 256026241 in words is "two hundred fifty-six million, twenty-six thousand, two hundred forty-one".