25454602752 has 80 divisors (see below), whose sum is σ = 67846178400. Its totient is φ = 8480673792.

The previous prime is 25454602721. The next prime is 25454602777. The reversal of 25454602752 is 25720645452.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5593374 + ... + 5597922.

It is an arithmetic number, because the mean of its divisors is an integer number (848077230).

Almost surely, 2^25454602752 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 25454602752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33923089200).

25454602752 is an abundant number, since it is smaller than the sum of its proper divisors (42391575648).

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

25454602752 is an equidigital number, since it uses as much as digits as its factorization.

25454602752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8213 (or 8197 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 42.

The spelling of 25454602752 in words is "twenty-five billion, four hundred fifty-four million, six hundred two thousand, seven hundred fifty-two".