260567221 has 4 divisors (see below), whose sum is σ = 264456352. Its totient is φ = 256678092.

The previous prime is 260567213. The next prime is 260567227. The reversal of 260567221 is 122765062.

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 260567221 - 2³ = 260567213 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 (260567227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1944465 + ... + 1944598.

It is an arithmetic number, because the mean of its divisors is an integer number (66114088).

Almost surely, 2^260567221 is an apocalyptic number.

It is an amenable number.

260567221 is a deficient number, since it is larger than the sum of its proper divisors (3889131).

260567221 is an equidigital number, since it uses as much as digits as its factorization.

260567221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3889130.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 260567221 is about 16142.0946905908. The cubic root of 260567221 is about 638.7142325730.

The spelling of 260567221 in words is "two hundred sixty million, five hundred sixty-seven thousand, two hundred twenty-one".