260528505 has 16 divisors (see below), whose sum is σ = 417130560. Its totient is φ = 138853568.

The previous prime is 260528503. The next prime is 260528537. The reversal of 260528505 is 505825062.

It is a cyclic number.

It is not a de Polignac number, because 260528505 - 2¹ = 260528503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (260528503) 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 15 ways as a sum of consecutive naturals, for example, 20554 + ... + 30716.

It is an arithmetic number, because the mean of its divisors is an integer number (26070660).

Almost surely, 2^260528505 is an apocalyptic number.

It is an amenable number.

260528505 is a deficient number, since it is larger than the sum of its proper divisors (156602055).

260528505 is a wasteful number, since it uses less digits than its factorization.

260528505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11880.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 260528505 is about 16140.8954212584. The cubic root of 260528505 is about 638.6825968656.

The spelling of 260528505 in words is "two hundred sixty million, five hundred twenty-eight thousand, five hundred five".