25138266848 has 48 divisors (see below), whose sum is σ = 50094495360. Its totient is φ = 12416789376.

The previous prime is 25138266847. The next prime is 25138266929. The reversal of 25138266848 is 84866283152.

It is a self number, because there is not a number n which added to its sum of digits gives 25138266848.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25138266847) by changing a digit.

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, 856643 + ... + 885501.

It is an arithmetic number, because the mean of its divisors is an integer number (1043635320).

Almost surely, 2^25138266848 is an apocalyptic number.

It is an amenable number.

25138266848 is a deficient number, since it is larger than the sum of its proper divisors (24956228512).

25138266848 is a wasteful number, since it uses less digits than its factorization.

25138266848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29199 (or 29191 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 53.

The spelling of 25138266848 in words is "twenty-five billion, one hundred thirty-eight million, two hundred sixty-six thousand, eight hundred forty-eight".