25600343004 has 96 divisors (see below), whose sum is σ = 67338432000. Its totient is φ = 8409961728.

The previous prime is 25600342991. The next prime is 25600343009. The reversal of 25600343004 is 40034300652.

25600343004 is a `hidden beast` number, since 25 + 600 + 3 + 4 + 30 + 0 + 4 = 666.

It is a super-3 number, since 3×25600343004³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25600343009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2178657 + ... + 2190375.

It is an arithmetic number, because the mean of its divisors is an integer number (701442000).

Almost surely, 2^25600343004 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 25600343004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33669216000).

25600343004 is an abundant number, since it is smaller than the sum of its proper divisors (41738088996).

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

25600343004 is a wasteful number, since it uses less digits than its factorization.

25600343004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12024 (or 12016 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 25600343004 its reverse (40034300652), we get a palindrome (65634643656).

The spelling of 25600343004 in words is "twenty-five billion, six hundred million, three hundred forty-three thousand, four".