25625215000 has 320 divisors, whose sum is σ = 75710764800. Its totient is φ = 7896000000.

The previous prime is 25625214997. The next prime is 25625215067. The reversal of 25625215000 is 51252652.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 25625215000.

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, 38884671 + ... + 38885329.

It is an arithmetic number, because the mean of its divisors is an integer number (236596140).

Almost surely, 2^25625215000 is an apocalyptic number.

25625215000 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 25625215000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37855382400).

25625215000 is an abundant number, since it is smaller than the sum of its proper divisors (50085549800).

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

25625215000 is a wasteful number, since it uses less digits than its factorization.

25625215000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804 (or 785 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 25625215000 its reverse (51252652), we get a palindrome (25676467652).

The spelling of 25625215000 in words is "twenty-five billion, six hundred twenty-five million, two hundred fifteen thousand".