20331405551325 has 48 divisors (see below), whose sum is σ = 36757566240192. Its totient is φ = 9834236160000.

The previous prime is 20331405551323. The next prime is 20331405551389. The reversal of 20331405551325 is 52315550413302.

It is not a de Polignac number, because 20331405551325 - 2¹ = 20331405551323 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331405551323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28921236 + ... + 29615885.

It is an arithmetic number, because the mean of its divisors is an integer number (765782630004).

Almost surely, 2^{20331405551325} is an apocalyptic number.

20331405551325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20331405551325 is a deficient number, since it is larger than the sum of its proper divisors (16426160688867).

20331405551325 is a wasteful number, since it uses less digits than its factorization.

20331405551325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58537566 (or 58537561 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 39.

Adding to 20331405551325 its reverse (52315550413302), we get a palindrome (72646955964627).

The spelling of 20331405551325 in words is "twenty trillion, three hundred thirty-one billion, four hundred five million, five hundred fifty-one thousand, three hundred twenty-five".