25112821152 has 96 divisors (see below), whose sum is σ = 67919427072. Its totient is φ = 8118641664.

The previous prime is 25112821133. The next prime is 25112821159.

25112821152 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (25112821159) 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 15 ways as a sum of consecutive naturals, for example, 1114833 + ... + 1137135.

It is an arithmetic number, because the mean of its divisors is an integer number (707494032).

Almost surely, 2^25112821152 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 25112821152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33959713536).

25112821152 is an abundant number, since it is smaller than the sum of its proper divisors (42806605920).

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

25112821152 is a wasteful number, since it uses less digits than its factorization.

25112821152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22670 (or 22662 counting only the distinct ones).

The product of its digits is 3200, while the sum is 30.

The spelling of 25112821152 in words is "twenty-five billion, one hundred twelve million, eight hundred twenty-one thousand, one hundred fifty-two".