260528261 has 4 divisors (see below), whose sum is σ = 297746592. Its totient is φ = 223309932.

The previous prime is 260528249. The next prime is 260528263. The reversal of 260528261 is 162825062.

260528261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 260528261 - 2⁶ = 260528197 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 (260528263) 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, 18609155 + ... + 18609168.

It is an arithmetic number, because the mean of its divisors is an integer number (74436648).

Almost surely, 2^260528261 is an apocalyptic number.

It is an amenable number.

260528261 is a deficient number, since it is larger than the sum of its proper divisors (37218331).

260528261 is an equidigital number, since it uses as much as digits as its factorization.

260528261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37218330.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 260528261 is about 16140.8878628160. The cubic root of 260528261 is about 638.6823974778.

The spelling of 260528261 in words is "two hundred sixty million, five hundred twenty-eight thousand, two hundred sixty-one".