25775055600 has 240 divisors, whose sum is σ = 95230333440. Its totient is φ = 5837184000.

The previous prime is 25775055583. The next prime is 25775055611. The reversal of 25775055600 is 655057752.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 901525 + ... + 929675.

It is an arithmetic number, because the mean of its divisors is an integer number (396793056).

Almost surely, 2^25775055600 is an apocalyptic number.

25775055600 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 25775055600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47615166720).

25775055600 is an abundant number, since it is smaller than the sum of its proper divisors (69455277840).

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

25775055600 is a wasteful number, since it uses less digits than its factorization.

25775055600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28288 (or 28277 counting only the distinct ones).

The product of its (nonzero) digits is 367500, while the sum is 42.

The spelling of 25775055600 in words is "twenty-five billion, seven hundred seventy-five million, fifty-five thousand, six hundred".