25454125340220 has 48 divisors (see below), whose sum is σ = 75022685216640. Its totient is φ = 6430515875136.

The previous prime is 25454125340173. The next prime is 25454125340233. The reversal of 25454125340220 is 2204352145452.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11164088922 + ... + 11164091201.

It is an arithmetic number, because the mean of its divisors is an integer number (1562972608680).

Almost surely, 2^{25454125340220} is an apocalyptic number.

25454125340220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25454125340220 is an abundant number, since it is smaller than the sum of its proper divisors (49568559876420).

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

25454125340220 is a wasteful number, since it uses less digits than its factorization.

25454125340220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22328180154 (or 22328180152 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 39.

Adding to 25454125340220 its reverse (2204352145452), we get a palindrome (27658477485672).

The spelling of 25454125340220 in words is "twenty-five trillion, four hundred fifty-four billion, one hundred twenty-five million, three hundred forty thousand, two hundred twenty".