25025752140 has 144 divisors (see below), whose sum is σ = 73579968000. Its totient is φ = 6354744704.

The previous prime is 25025752127. The next prime is 25025752151. The reversal of 25025752140 is 4125752052.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7584211 + ... + 7587509.

It is an arithmetic number, because the mean of its divisors is an integer number (510972000).

Almost surely, 2^25025752140 is an apocalyptic number.

25025752140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25025752140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36789984000).

25025752140 is an abundant number, since it is smaller than the sum of its proper divisors (48554215860).

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

25025752140 is a wasteful number, since it uses less digits than its factorization.

25025752140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3596 (or 3571 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 33.

The spelling of 25025752140 in words is "twenty-five billion, twenty-five million, seven hundred fifty-two thousand, one hundred forty".