260825805 has 32 divisors (see below), whose sum is σ = 475009920. Its totient is φ = 135711360.

The previous prime is 260825801. The next prime is 260825837. The reversal of 260825805 is 508528062.

It is not a de Polignac number, because 260825805 - 2² = 260825801 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 260825805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260825801) 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 31 ways as a sum of consecutive naturals, for example, 18027 + ... + 29096.

It is an arithmetic number, because the mean of its divisors is an integer number (14844060).

Almost surely, 2^260825805 is an apocalyptic number.

It is an amenable number.

260825805 is a deficient number, since it is larger than the sum of its proper divisors (214184115).

260825805 is a wasteful number, since it uses less digits than its factorization.

260825805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47178 (or 47172 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 260825805 is about 16150.1023216573. The cubic root of 260825805 is about 638.9254470098.

The spelling of 260825805 in words is "two hundred sixty million, eight hundred twenty-five thousand, eight hundred five".