25005135200 has 72 divisors (see below), whose sum is σ = 61146867600. Its totient is φ = 9985164800.

The previous prime is 25005135179. The next prime is 25005135229. The reversal of 25005135200 is 253150052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 453110 + ... + 505290.

It is an arithmetic number, because the mean of its divisors is an integer number (849262050).

Almost surely, 2^25005135200 is an apocalyptic number.

25005135200 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 25005135200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30573433800).

25005135200 is an abundant number, since it is smaller than the sum of its proper divisors (36141732400).

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

25005135200 is a wasteful number, since it uses less digits than its factorization.

25005135200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52800 (or 52787 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

Adding to 25005135200 its reverse (253150052), we get a palindrome (25258285252).

The spelling of 25005135200 in words is "twenty-five billion, five million, one hundred thirty-five thousand, two hundred".