2560705266 has 32 divisors (see below), whose sum is σ = 5995801728. Its totient is φ = 713784960.

The previous prime is 2560705211. The next prime is 2560705267. The reversal of 2560705266 is 6625070652.

It is a super-2 number, since 2×2560705266² = 13114422918640261512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2560705267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741805 + ... + 745248.

It is an arithmetic number, because the mean of its divisors is an integer number (187368804).

Almost surely, 2^2560705266 is an apocalyptic number.

2560705266 is an abundant number, since it is smaller than the sum of its proper divisors (3435096462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2560705266 is a wasteful number, since it uses less digits than its factorization.

2560705266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487106.

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 2560705266 is about 50603.4116043573. The cubic root of 2560705266 is about 1368.1063695461.

The spelling of 2560705266 in words is "two billion, five hundred sixty million, seven hundred five thousand, two hundred sixty-six".