2565867950 has 12 divisors (see below), whose sum is σ = 4772514480. Its totient is φ = 1026347160.

The previous prime is 2565867947. The next prime is 2565867973. The reversal of 2565867950 is 597685652.

It is a junction number, because it is equal to n+sod(n) for n = 2565867892 and 2565867901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25658630 + ... + 25658729.

It is an arithmetic number, because the mean of its divisors is an integer number (397709540).

Almost surely, 2^2565867950 is an apocalyptic number.

2565867950 is a deficient number, since it is larger than the sum of its proper divisors (2206646530).

2565867950 is a wasteful number, since it uses less digits than its factorization.

2565867950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51317371 (or 51317366 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 53.

The square root of 2565867950 is about 50654.3971437821. The cubic root of 2565867950 is about 1369.0251736461.

The spelling of 2565867950 in words is "two billion, five hundred sixty-five million, eight hundred sixty-seven thousand, nine hundred fifty".