25423132488 has 128 divisors (see below), whose sum is σ = 70849658880. Its totient is φ = 7549297920.

The previous prime is 25423132481. The next prime is 25423132517. The reversal of 25423132488 is 88423132452.

It is not an unprimeable number, because it can be changed into a prime (25423132481) 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 31 ways as a sum of consecutive naturals, for example, 3700945 + ... + 3707807.

It is an arithmetic number, because the mean of its divisors is an integer number (553512960).

Almost surely, 2^25423132488 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 25423132488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35424829440).

25423132488 is an abundant number, since it is smaller than the sum of its proper divisors (45426526392).

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

25423132488 is a wasteful number, since it uses less digits than its factorization.

25423132488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7299 (or 7295 counting only the distinct ones).

The product of its digits is 368640, while the sum is 42.

The spelling of 25423132488 in words is "twenty-five billion, four hundred twenty-three million, one hundred thirty-two thousand, four hundred eighty-eight".