25774503938 has 16 divisors (see below), whose sum is σ = 40377237696. Its totient is φ = 12316384080.

The previous prime is 25774503907. The next prime is 25774503943. The reversal of 25774503938 is 83930547752.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25774503938.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185381 + ... + 293112.

It is an arithmetic number, because the mean of its divisors is an integer number (2523577356).

Almost surely, 2^25774503938 is an apocalyptic number.

25774503938 is a deficient number, since it is larger than the sum of its proper divisors (14602733758).

25774503938 is a wasteful number, since it uses less digits than its factorization.

25774503938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479689.

The product of its (nonzero) digits is 6350400, while the sum is 53.

The spelling of 25774503938 in words is "twenty-five billion, seven hundred seventy-four million, five hundred three thousand, nine hundred thirty-eight".