20533545532 has 12 divisors (see below), whose sum is σ = 35938518840. Its totient is φ = 10265397296.

The previous prime is 20533545517. The next prime is 20533545541. The reversal of 20533545532 is 23554533502.

It is a super-2 number, since 2×20533545532² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20533545491 and 20533545500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309907 + ... + 370282.

It is an arithmetic number, because the mean of its divisors is an integer number (2994876570).

Almost surely, 2^20533545532 is an apocalyptic number.

It is an amenable number.

20533545532 is a deficient number, since it is larger than the sum of its proper divisors (15404973308).

20533545532 is a wasteful number, since it uses less digits than its factorization.

20533545532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687740 (or 687738 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 37.

The spelling of 20533545532 in words is "twenty billion, five hundred thirty-three million, five hundred forty-five thousand, five hundred thirty-two".