25455451040000 has 180 divisors, whose sum is σ = 63624581416704. Its totient is φ = 10161241344000.

The previous prime is 25455451039927. The next prime is 25455451040051. The reversal of 25455451040000 is 4015455452.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 77756657 + ... + 78083343.

Almost surely, 2^{25455451040000} is an apocalyptic number.

25455451040000 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 25455451040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31812290708352).

25455451040000 is an abundant number, since it is smaller than the sum of its proper divisors (38169130376704).

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

25455451040000 is an frugal number, since it uses more digits than its factorization.

25455451040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327210 (or 327181 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 35.

Adding to 25455451040000 its reverse (4015455452), we get a palindrome (25459466495452).

The spelling of 25455451040000 in words is "twenty-five trillion, four hundred fifty-five billion, four hundred fifty-one million, forty thousand".