20045532523 has 2 divisors, whose sum is σ = 20045532524. Its totient is φ = 20045532522.

The previous prime is 20045532503. The next prime is 20045532527. The reversal of 20045532523 is 32523554002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20045532523 - 2⁵ = 20045532491 is a prime.

It is not a weakly prime, because it can be changed into another prime (20045532527) by changing a digit.

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 as a sum of consecutive naturals, namely, 10022766261 + 10022766262.

It is an arithmetic number, because the mean of its divisors is an integer number (10022766262).

Almost surely, 2^20045532523 is an apocalyptic number.

20045532523 is a deficient number, since it is larger than the sum of its proper divisors (1).

20045532523 is an equidigital number, since it uses as much as digits as its factorization.

20045532523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36000, while the sum is 31.

The spelling of 20045532523 in words is "twenty billion, forty-five million, five hundred thirty-two thousand, five hundred twenty-three".