260553053261 has 4 divisors (see below), whose sum is σ = 261473735712. Its totient is φ = 259632370812.

The previous prime is 260553053219. The next prime is 260553053263. The reversal of 260553053261 is 162350355062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 260553053261 - 2³⁴ = 243373184077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260553053263) 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 3 ways as a sum of consecutive naturals, for example, 460340801 + ... + 460341366.

It is an arithmetic number, because the mean of its divisors is an integer number (65368433928).

Almost surely, 2^260553053261 is an apocalyptic number.

It is an amenable number.

260553053261 is a deficient number, since it is larger than the sum of its proper divisors (920682451).

260553053261 is an equidigital number, since it uses as much as digits as its factorization.

260553053261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920682450.

The product of its (nonzero) digits is 162000, while the sum is 38.

The spelling of 260553053261 in words is "two hundred sixty billion, five hundred fifty-three million, fifty-three thousand, two hundred sixty-one".