25550360448 has 192 divisors, whose sum is σ = 71496487920. Its totient is φ = 8082063360.

The previous prime is 25550360441. The next prime is 25550360453. The reversal of 25550360448 is 84406305552.

It is a tau number, because it is divible by the number of its divisors (192).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25550360441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19698936 + ... + 19700232.

Almost surely, 2^25550360448 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 25550360448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35748243960).

25550360448 is an abundant number, since it is smaller than the sum of its proper divisors (45946127472).

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

25550360448 is a wasteful number, since it uses less digits than its factorization.

25550360448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433 (or 1392 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 25550360448 in words is "twenty-five billion, five hundred fifty million, three hundred sixty thousand, four hundred forty-eight".