2565266534 has 8 divisors (see below), whose sum is σ = 3849316968. Its totient is φ = 1282160880.

The previous prime is 2565266531. The next prime is 2565266563. The reversal of 2565266534 is 4356625652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565266531) 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, 229367 + ... + 240290.

It is an arithmetic number, because the mean of its divisors is an integer number (481164621).

Almost surely, 2^2565266534 is an apocalyptic number.

2565266534 is a deficient number, since it is larger than the sum of its proper divisors (1284050434).

2565266534 is a wasteful number, since it uses less digits than its factorization.

2565266534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472390.

The product of its digits is 1296000, while the sum is 44.

The square root of 2565266534 is about 50648.4603319785. The cubic root of 2565266534 is about 1368.9182029579.

The spelling of 2565266534 in words is "two billion, five hundred sixty-five million, two hundred sixty-six thousand, five hundred thirty-four".