25161280200 has 576 divisors, whose sum is σ = 102439633920. Its totient is φ = 5412096000.

The previous prime is 25161280187. The next prime is 25161280223. The reversal of 25161280200 is 208216152.

It is a happy number.

25161280200 is a `hidden beast` number, since 2 + 516 + 128 + 0 + 20 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 14451330 + ... + 14453070.

Almost surely, 2^25161280200 is an apocalyptic number.

25161280200 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 25161280200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51219816960).

25161280200 is an abundant number, since it is smaller than the sum of its proper divisors (77278353720).

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

25161280200 is a wasteful number, since it uses less digits than its factorization.

25161280200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838 (or 1826 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 25161280200 its reverse (208216152), we get a palindrome (25369496352).

The spelling of 25161280200 in words is "twenty-five billion, one hundred sixty-one million, two hundred eighty thousand, two hundred".