2565993246 has 8 divisors (see below), whose sum is σ = 5131986504. Its totient is φ = 855331080.

The previous prime is 2565993181. The next prime is 2565993281. The reversal of 2565993246 is 6423995652.

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

2565993246 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213832765 + ... + 213832776.

It is an arithmetic number, because the mean of its divisors is an integer number (641498313).

Almost surely, 2^2565993246 is an apocalyptic number.

2565993246 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2565993246 is a wasteful number, since it uses less digits than its factorization.

2565993246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427665546.

The product of its digits is 3499200, while the sum is 51.

The square root of 2565993246 is about 50655.6339018672. The cubic root of 2565993246 is about 1369.0474572800.

The spelling of 2565993246 in words is "two billion, five hundred sixty-five million, nine hundred ninety-three thousand, two hundred forty-six".