25251228838 has 8 divisors (see below), whose sum is σ = 41320192680. Its totient is φ = 11477831280.

The previous prime is 25251228829. The next prime is 25251228857. The reversal of 25251228838 is 83882215252.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 573891543 + ... + 573891586.

It is an arithmetic number, because the mean of its divisors is an integer number (5165024085).

Almost surely, 2^25251228838 is an apocalyptic number.

25251228838 is a deficient number, since it is larger than the sum of its proper divisors (16068963842).

25251228838 is a wasteful number, since it uses less digits than its factorization.

25251228838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147783142.

The product of its digits is 614400, while the sum is 46.

The spelling of 25251228838 in words is "twenty-five billion, two hundred fifty-one million, two hundred twenty-eight thousand, eight hundred thirty-eight".