2565365047 has 8 divisors (see below), whose sum is σ = 3086153600. Its totient is φ = 2083153464.

The previous prime is 2565365021. The next prime is 2565365063. The reversal of 2565365047 is 7405635652.

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

It is a de Polignac number, because none of the positive numbers 2^k-2565365047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2565364994 and 2565365012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565365087) 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, 9644097 + ... + 9644362.

It is an arithmetic number, because the mean of its divisors is an integer number (385769200).

Almost surely, 2^2565365047 is an apocalyptic number.

2565365047 is a deficient number, since it is larger than the sum of its proper divisors (520788553).

2565365047 is a wasteful number, since it uses less digits than its factorization.

2565365047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19288485.

The product of its (nonzero) digits is 756000, while the sum is 43.

The square root of 2565365047 is about 50649.4328398650. The cubic root of 2565365047 is about 1368.9357260900.

The spelling of 2565365047 in words is "two billion, five hundred sixty-five million, three hundred sixty-five thousand, forty-seven".