260653561 has 8 divisors (see below), whose sum is σ = 298751040. Its totient is φ = 222771408.

The previous prime is 260653529. The next prime is 260653577. The reversal of 260653561 is 165356062.

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

It is a cyclic number.

It is not a de Polignac number, because 260653561 - 2⁵ = 260653529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (260653511) 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, 51226 + ... + 56083.

It is an arithmetic number, because the mean of its divisors is an integer number (37343880).

Almost surely, 2^260653561 is an apocalyptic number.

It is an amenable number.

260653561 is a deficient number, since it is larger than the sum of its proper divisors (38097479).

260653561 is a wasteful number, since it uses less digits than its factorization.

260653561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107663.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 260653561 is about 16144.7688431888. The cubic root of 260653561 is about 638.7847716284.

The spelling of 260653561 in words is "two hundred sixty million, six hundred fifty-three thousand, five hundred sixty-one".