25125452220000 has 480 divisors, whose sum is σ = 89946453421440. Its totient is φ = 6088476160000.

The previous prime is 25125452219971. The next prime is 25125452220023. The reversal of 25125452220000 is 2225452152.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 25125452220000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1939733524 + ... + 1939746476.

It is an arithmetic number, because the mean of its divisors is an integer number (187388444628).

Almost surely, 2^{25125452220000} is an apocalyptic number.

25125452220000 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 25125452220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44973226710720).

25125452220000 is an abundant number, since it is smaller than the sum of its proper divisors (64821001201440).

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

25125452220000 is a wasteful number, since it uses less digits than its factorization.

25125452220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15936 (or 15913 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 25125452220000 its reverse (2225452152), we get a palindrome (25127677672152).

The spelling of 25125452220000 in words is "twenty-five trillion, one hundred twenty-five billion, four hundred fifty-two million, two hundred twenty thousand".