20532445511 has 2 divisors, whose sum is σ = 20532445512. Its totient is φ = 20532445510.

The previous prime is 20532445501. The next prime is 20532445523. The reversal of 20532445511 is 11554423502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20532445511 - 2⁶ = 20532445447 is a prime.

It is a super-2 number, since 2×20532445511² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20532445501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10266222755 + 10266222756.

It is an arithmetic number, because the mean of its divisors is an integer number (10266222756).

Almost surely, 2^20532445511 is an apocalyptic number.

20532445511 is a deficient number, since it is larger than the sum of its proper divisors (1).

20532445511 is an equidigital number, since it uses as much as digits as its factorization.

20532445511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 20532445511 in words is "twenty billion, five hundred thirty-two million, four hundred forty-five thousand, five hundred eleven".