2565356330 has 16 divisors (see below), whose sum is σ = 4766598144. Its totient is φ = 993041040.

The previous prime is 2565356279. The next prime is 2565356333. The reversal of 2565356330 is 336535652.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2565356333) 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, 4137362 + ... + 4137981.

It is an arithmetic number, because the mean of its divisors is an integer number (297912384).

Almost surely, 2^2565356330 is an apocalyptic number.

2565356330 is a deficient number, since it is larger than the sum of its proper divisors (2201241814).

2565356330 is a wasteful number, since it uses less digits than its factorization.

2565356330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8275381.

The product of its (nonzero) digits is 243000, while the sum is 38.

The square root of 2565356330 is about 50649.3467874957. The cubic root of 2565356330 is about 1368.9341755600.

The spelling of 2565356330 in words is "two billion, five hundred sixty-five million, three hundred fifty-six thousand, three hundred thirty".