25747074752 has 56 divisors (see below), whose sum is σ = 58575208224. Its totient is φ = 10999590912.

The previous prime is 25747074733. The next prime is 25747074757.

25747074752 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (56).

It is a self number, because there is not a number n which added to its sum of digits gives 25747074752.

It is not an unprimeable number, because it can be changed into a prime (25747074757) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 51368 + ... + 232664.

Almost surely, 2^25747074752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25747074752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29287604112).

25747074752 is an abundant number, since it is smaller than the sum of its proper divisors (32828133472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25747074752 is a wasteful number, since it uses less digits than its factorization.

25747074752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181633 (or 181623 counting only the distinct ones).

The product of its (nonzero) digits is 3841600, while the sum is 50.

The spelling of 25747074752 in words is "twenty-five billion, seven hundred forty-seven million, seventy-four thousand, seven hundred fifty-two".