25104655616 has 144 divisors (see below), whose sum is σ = 56630246400. Its totient is φ = 11036196864.

The previous prime is 25104655577. The next prime is 25104655619. The reversal of 25104655616 is 61655640152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25104655619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6034145 + ... + 6038303.

It is an arithmetic number, because the mean of its divisors is an integer number (393265600).

Almost surely, 2^25104655616 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 25104655616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28315123200).

25104655616 is an abundant number, since it is smaller than the sum of its proper divisors (31525590784).

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

25104655616 is a wasteful number, since it uses less digits than its factorization.

25104655616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4284 (or 4270 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 25104655616 in words is "twenty-five billion, one hundred four million, six hundred fifty-five thousand, six hundred sixteen".