2565239412 has 24 divisors (see below), whose sum is σ = 6337650816. Its totient is φ = 804780928.

The previous prime is 2565239387. The next prime is 2565239423. The reversal of 2565239412 is 2149325652.

2565239412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6287148 + ... + 6287555.

It is an arithmetic number, because the mean of its divisors is an integer number (264068784).

Almost surely, 2^2565239412 is an apocalyptic number.

It is an amenable number.

2565239412 is an abundant number, since it is smaller than the sum of its proper divisors (3772411404).

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

2565239412 is a wasteful number, since it uses less digits than its factorization.

2565239412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12574727 (or 12574725 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

The square root of 2565239412 is about 50648.1925837438. The cubic root of 2565239412 is about 1368.9133785170.

The spelling of 2565239412 in words is "two billion, five hundred sixty-five million, two hundred thirty-nine thousand, four hundred twelve".