25548849152 has 48 divisors (see below), whose sum is σ = 51154851555. Its totient is φ = 12759957504.

The previous prime is 25548849091. The next prime is 25548849197. The reversal of 25548849152 is 25194884552.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 12774424576 + 12774424576 = 113024^2 + 113024^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=113024.

It is a super-2 number, since 2×25548849152² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25548849094 and 25548849103.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 28933703 + ... + 28934585.

Almost surely, 2^25548849152 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 25548849152

25548849152 is an abundant number, since it is smaller than the sum of its proper divisors (25606002403).

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

25548849152 is an frugal number, since it uses more digits than its factorization.

25548849152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796 (or 885 counting only the distinct ones).

The product of its digits is 4608000, while the sum is 53.

The spelling of 25548849152 in words is "twenty-five billion, five hundred forty-eight million, eight hundred forty-nine thousand, one hundred fifty-two".