2565723074 has 16 divisors (see below), whose sum is σ = 3914689920. Its totient is φ = 1260858960.

The previous prime is 2565723073. The next prime is 2565723089. The reversal of 2565723074 is 4703275652.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2565723073) 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 7 ways as a sum of consecutive naturals, for example, 166217 + ... + 180995.

It is an arithmetic number, because the mean of its divisors is an integer number (244668120).

Almost surely, 2^2565723074 is an apocalyptic number.

2565723074 is a deficient number, since it is larger than the sum of its proper divisors (1348966846).

2565723074 is a wasteful number, since it uses less digits than its factorization.

2565723074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16265.

The product of its (nonzero) digits is 352800, while the sum is 41.

The square root of 2565723074 is about 50652.9670799253. The cubic root of 2565723074 is about 1368.9994068454. Note that the first 3 decimals are identical.

The spelling of 2565723074 in words is "two billion, five hundred sixty-five million, seven hundred twenty-three thousand, seventy-four".