25450044480 has 1120 divisors, whose sum is σ = 113014573056. Its totient is φ = 5303107584.

The previous prime is 25450044469. The next prime is 25450044493. The reversal of 25450044480 is 8444005452.

It is a tau number, because it is divible by the number of its divisors (1120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 114125649 + ... + 114125871.

Almost surely, 2^25450044480 is an apocalyptic number.

25450044480 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 25450044480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56507286528).

25450044480 is an abundant number, since it is smaller than the sum of its proper divisors (87564528576).

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

25450044480 is a wasteful number, since it uses less digits than its factorization.

25450044480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 36.

The spelling of 25450044480 in words is "twenty-five billion, four hundred fifty million, forty-four thousand, four hundred eighty".