25568982534 has 16 divisors (see below), whose sum is σ = 52520072688. Its totient is φ = 8292642912.

The previous prime is 25568982473. The next prime is 25568982581. The reversal of 25568982534 is 43528986552.

It is a super-2 number, since 2×25568982534² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57587577 + ... + 57588020.

It is an arithmetic number, because the mean of its divisors is an integer number (3282504543).

Almost surely, 2^25568982534 is an apocalyptic number.

25568982534 is an abundant number, since it is smaller than the sum of its proper divisors (26951090154).

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

25568982534 is a wasteful number, since it uses less digits than its factorization.

25568982534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115175639.

The product of its digits is 20736000, while the sum is 57.

The spelling of 25568982534 in words is "twenty-five billion, five hundred sixty-eight million, nine hundred eighty-two thousand, five hundred thirty-four".