260780559 has 8 divisors (see below), whose sum is σ = 374454192. Its totient is φ = 160480320.

The previous prime is 260780539. The next prime is 260780573. The reversal of 260780559 is 955087062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 260780559 - 2⁷ = 260780431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 260780559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260780539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3343302 + ... + 3343379.

It is an arithmetic number, because the mean of its divisors is an integer number (46806774).

Almost surely, 2^260780559 is an apocalyptic number.

260780559 is a deficient number, since it is larger than the sum of its proper divisors (113673633).

260780559 is a wasteful number, since it uses less digits than its factorization.

260780559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6686697.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 260780559 is about 16148.7014648237. The cubic root of 260780559 is about 638.8884996270. Note that the first 3 decimals are identical.

The spelling of 260780559 in words is "two hundred sixty million, seven hundred eighty thousand, five hundred fifty-nine".