25600505441504 has 96 divisors (see below), whose sum is σ = 59023126008000. Its totient is φ = 10700945141760.

The previous prime is 25600505441479. The next prime is 25600505441513. The reversal of 25600505441504 is 40514450500652.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31457522 + ... + 32261070.

It is an arithmetic number, because the mean of its divisors is an integer number (614824229250).

Almost surely, 2^{25600505441504} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25600505441504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29511563004000).

25600505441504 is an abundant number, since it is smaller than the sum of its proper divisors (33422620566496).

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

25600505441504 is a wasteful number, since it uses less digits than its factorization.

25600505441504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807076 (or 807068 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 41.

The spelling of 25600505441504 in words is "twenty-five trillion, six hundred billion, five hundred five million, four hundred forty-one thousand, five hundred four".