260528887 has 2 divisors, whose sum is σ = 260528888. Its totient is φ = 260528886.

The previous prime is 260528839. The next prime is 260528903. The reversal of 260528887 is 788825062.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260528887 is a prime.

It is a super-2 number, since 2×260528887² = 135750601922917538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260528287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130264443 + 130264444.

It is an arithmetic number, because the mean of its divisors is an integer number (130264444).

Almost surely, 2^260528887 is an apocalyptic number.

260528887 is a deficient number, since it is larger than the sum of its proper divisors (1).

260528887 is an equidigital number, since it uses as much as digits as its factorization.

260528887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 430080, while the sum is 46.

The square root of 260528887 is about 16140.9072545505. The cubic root of 260528887 is about 638.6829090216.

The spelling of 260528887 in words is "two hundred sixty million, five hundred twenty-eight thousand, eight hundred eighty-seven".