2561104273 has 16 divisors (see below), whose sum is σ = 3205560960. Its totient is φ = 1992018816.

The previous prime is 2561104241. The next prime is 2561104291. The reversal of 2561104273 is 3724011652.

It is a cyclic number.

It is not a de Polignac number, because 2561104273 - 2⁵ = 2561104241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2561104223) 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, 233140 + ... + 243877.

It is an arithmetic number, because the mean of its divisors is an integer number (200347560).

Almost surely, 2^2561104273 is an apocalyptic number.

It is an amenable number.

2561104273 is a deficient number, since it is larger than the sum of its proper divisors (644456687).

2561104273 is a wasteful number, since it uses less digits than its factorization.

2561104273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477096.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 2561104273 is about 50607.3539418927. The cubic root of 2561104273 is about 1368.1774249274.

The spelling of 2561104273 in words is "two billion, five hundred sixty-one million, one hundred four thousand, two hundred seventy-three".