25645310126 has 16 divisors (see below), whose sum is σ = 38784780720. Its totient is φ = 12717240960.

The previous prime is 25645310113. The next prime is 25645310147. The reversal of 25645310126 is 62101354652.

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, 224396 + ... + 318816.

It is an arithmetic number, because the mean of its divisors is an integer number (2424048795).

Almost surely, 2^25645310126 is an apocalyptic number.

25645310126 is a deficient number, since it is larger than the sum of its proper divisors (13139470594).

25645310126 is a wasteful number, since it uses less digits than its factorization.

25645310126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95539.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 25645310126 its reverse (62101354652), we get a palindrome (87746664778).

The spelling of 25645310126 in words is "twenty-five billion, six hundred forty-five million, three hundred ten thousand, one hundred twenty-six".