2565875854 has 4 divisors (see below), whose sum is σ = 3848813784. Its totient is φ = 1282937926.

The previous prime is 2565875849. The next prime is 2565875867. The reversal of 2565875854 is 4585785652.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2565875795 and 2565875804.

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 as a sum of consecutive naturals, namely, 641468962 + ... + 641468965.

It is an arithmetic number, because the mean of its divisors is an integer number (962203446).

Almost surely, 2^2565875854 is an apocalyptic number.

2565875854 is a deficient number, since it is larger than the sum of its proper divisors (1282937930).

2565875854 is a wasteful number, since it uses less digits than its factorization.

2565875854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282937929.

The product of its digits is 13440000, while the sum is 55.

The square root of 2565875854 is about 50654.4751626152. The cubic root of 2565875854 is about 1369.0265793776.

The spelling of 2565875854 in words is "two billion, five hundred sixty-five million, eight hundred seventy-five thousand, eight hundred fifty-four".