25550104144 has 10 divisors (see below), whose sum is σ = 49503326810. Its totient is φ = 12775052064.

The previous prime is 25550104133. The next prime is 25550104163. The reversal of 25550104144 is 44140105552.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19484809744 + 6065294400 = 139588^2 + 77880^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 798440739 + ... + 798440770.

It is an arithmetic number, because the mean of its divisors is an integer number (4950332681).

Almost surely, 2^25550104144 is an apocalyptic number.

It is an amenable number.

25550104144 is a deficient number, since it is larger than the sum of its proper divisors (23953222666).

25550104144 is a wasteful number, since it uses less digits than its factorization.

25550104144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596881517 (or 1596881511 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 25550104144 its reverse (44140105552), we get a palindrome (69690209696).

The spelling of 25550104144 in words is "twenty-five billion, five hundred fifty million, one hundred four thousand, one hundred forty-four".