260505447 has 16 divisors (see below), whose sum is σ = 371084160. Its totient is φ = 162071712.

The previous prime is 260505439. The next prime is 260505457. The reversal of 260505447 is 744505062.

It is not a de Polignac number, because 260505447 - 2³ = 260505439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260505407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30288 + ... + 37925.

It is an arithmetic number, because the mean of its divisors is an integer number (23192760).

Almost surely, 2^260505447 is an apocalyptic number.

260505447 is a deficient number, since it is larger than the sum of its proper divisors (110578713).

260505447 is a wasteful number, since it uses less digits than its factorization.

260505447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68302.

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 260505447 is about 16140.1811328126. The cubic root of 260505447 is about 638.6637541702.

The spelling of 260505447 in words is "two hundred sixty million, five hundred five thousand, four hundred forty-seven".