25706535106 has 16 divisors (see below), whose sum is σ = 44083679616. Its totient is φ = 11013253056.

The previous prime is 25706535067. The next prime is 25706535109. The reversal of 25706535106 is 60153560752.

It is not an unprimeable number, because it can be changed into a prime (25706535109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277591 + ... + 358426.

It is an arithmetic number, because the mean of its divisors is an integer number (2755229976).

Almost surely, 2^25706535106 is an apocalyptic number.

25706535106 is a deficient number, since it is larger than the sum of its proper divisors (18377144510).

25706535106 is a wasteful number, since it uses less digits than its factorization.

25706535106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638913.

The product of its (nonzero) digits is 189000, while the sum is 40.

The spelling of 25706535106 in words is "twenty-five billion, seven hundred six million, five hundred thirty-five thousand, one hundred six".