25455309000000 has 1568 divisors, whose sum is σ = 96010771046400. Its totient is φ = 5896320000000.

The previous prime is 25455308999993. The next prime is 25455309000029. The reversal of 25455309000000 is 90355452.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 152426999917 + ... + 152427000083.

Almost surely, 2^{25455309000000} is an apocalyptic number.

25455309000000 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 25455309000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48005385523200).

25455309000000 is an abundant number, since it is smaller than the sum of its proper divisors (70555462046400).

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

25455309000000 is a wasteful number, since it uses less digits than its factorization.

25455309000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 33.

Adding to 25455309000000 its reverse (90355452), we get a palindrome (25455399355452).

The spelling of 25455309000000 in words is "twenty-five trillion, four hundred fifty-five billion, three hundred nine million", and thus it is an aban number.