25800338823900 has 144 divisors (see below), whose sum is σ = 76670202376320. Its totient is φ = 6693820473600.

The previous prime is 25800338823899. The next prime is 25800338823911. The reversal of 25800338823900 is 932883300852.

It is a super-2 number, since 2×25800338823900² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 307328131 + ... + 307412069.

Almost surely, 2^{25800338823900} is an apocalyptic number.

25800338823900 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 25800338823900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38335101188160).

25800338823900 is an abundant number, since it is smaller than the sum of its proper divisors (50869863552420).

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

25800338823900 is a wasteful number, since it uses less digits than its factorization.

25800338823900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111684 (or 111677 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 25800338823900 in words is "twenty-five trillion, eight hundred billion, three hundred thirty-eight million, eight hundred twenty-three thousand, nine hundred".