20540522033 has 6 divisors (see below), whose sum is σ = 21678501474. Its totient is φ = 19459441584.

The previous prime is 20540522021. The next prime is 20540522083. The reversal of 20540522033 is 33022504502.

It can be written as a sum of positive squares in only one way, i.e., 19300989184 + 1239532849 = 138928^2 + 35207^2 .

It is not a de Polignac number, because 20540522033 - 2¹⁰ = 20540521009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20540521993 and 20540522011.

It is not an unprimeable number, because it can be changed into a prime (20540522083) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28449116 + ... + 28449837.

It is an arithmetic number, because the mean of its divisors is an integer number (3613083579).

Almost surely, 2^20540522033 is an apocalyptic number.

It is an amenable number.

20540522033 is a deficient number, since it is larger than the sum of its proper divisors (1137979441).

20540522033 is an equidigital number, since it uses as much as digits as its factorization.

20540522033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56898991 (or 56898972 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

The spelling of 20540522033 in words is "twenty billion, five hundred forty million, five hundred twenty-two thousand, thirty-three".