20045543325 has 48 divisors (see below), whose sum is σ = 33369251136. Its totient is φ = 10617868800.

The previous prime is 20045543263. The next prime is 20045543333. The reversal of 20045543325 is 52334554002.

It is a happy number.

It is not a de Polignac number, because 20045543325 - 2¹⁰ = 20045542301 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9762999 + ... + 9765051.

It is an arithmetic number, because the mean of its divisors is an integer number (695192732).

Almost surely, 2^20045543325 is an apocalyptic number.

20045543325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20045543325 is a deficient number, since it is larger than the sum of its proper divisors (13323707811).

20045543325 is a wasteful number, since it uses less digits than its factorization.

20045543325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894 (or 2889 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 33.

The spelling of 20045543325 in words is "twenty billion, forty-five million, five hundred forty-three thousand, three hundred twenty-five".