25453435452 has 12 divisors (see below), whose sum is σ = 59391349416. Its totient is φ = 8484478480.

The previous prime is 25453435439. The next prime is 25453435457.

25453435452 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25453435457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1060559799 + ... + 1060559822.

It is an arithmetic number, because the mean of its divisors is an integer number (4949279118).

Almost surely, 2^25453435452 is an apocalyptic number.

It is an amenable number.

25453435452 is an abundant number, since it is smaller than the sum of its proper divisors (33937913964).

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

25453435452 is a wasteful number, since it uses less digits than its factorization.

25453435452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121119628 (or 2121119626 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 42.

The spelling of 25453435452 in words is "twenty-five billion, four hundred fifty-three million, four hundred thirty-five thousand, four hundred fifty-two".