2565411536 has 20 divisors (see below), whose sum is σ = 5186593632. Its totient is φ = 1226935776.

The previous prime is 2565411517. The next prime is 2565411551. The reversal of 2565411536 is 6351145652.

It is a self number, because there is not a number n which added to its sum of digits gives 2565411536.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3485246 + ... + 3485981.

Almost surely, 2^2565411536 is an apocalyptic number.

It is an amenable number.

2565411536 is an abundant number, since it is smaller than the sum of its proper divisors (2621182096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2565411536 is a wasteful number, since it uses less digits than its factorization.

2565411536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6971258 (or 6971252 counting only the distinct ones).

The product of its digits is 108000, while the sum is 38.

The square root of 2565411536 is about 50649.8917669130. The cubic root of 2565411536 is about 1368.9439952275.

The spelling of 2565411536 in words is "two billion, five hundred sixty-five million, four hundred eleven thousand, five hundred thirty-six".