2565424543 has 8 divisors (see below), whose sum is σ = 2826355536. Its totient is φ = 2309112000.

The previous prime is 2565424523. The next prime is 2565424567. The reversal of 2565424543 is 3454245652.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2565424543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2565424496 and 2565424505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565424523) 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, 1153446 + ... + 1155667.

It is an arithmetic number, because the mean of its divisors is an integer number (353294442).

Almost surely, 2^2565424543 is an apocalyptic number.

2565424543 is a deficient number, since it is larger than the sum of its proper divisors (260930993).

2565424543 is a wasteful number, since it uses less digits than its factorization.

2565424543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309225.

The product of its digits is 576000, while the sum is 40.

The square root of 2565424543 is about 50650.0201678143. The cubic root of 2565424543 is about 1368.9463088036.

The spelling of 2565424543 in words is "two billion, five hundred sixty-five million, four hundred twenty-four thousand, five hundred forty-three".