20625334533 has 16 divisors (see below), whose sum is σ = 30858590400. Its totient is φ = 13614080400.

The previous prime is 20625334489. The next prime is 20625334589. The reversal of 20625334533 is 33543352602.

20625334533 is a `hidden beast` number, since 20 + 62 + 533 + 45 + 3 + 3 = 666.

It is not a de Polignac number, because 20625334533 - 2⁹ = 20625334021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20625336533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3778963 + ... + 3784416.

It is an arithmetic number, because the mean of its divisors is an integer number (1928661900).

Almost surely, 2^20625334533 is an apocalyptic number.

It is an amenable number.

20625334533 is a deficient number, since it is larger than the sum of its proper divisors (10233255867).

20625334533 is a wasteful number, since it uses less digits than its factorization.

20625334533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7563489 (or 7563483 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 36.

The spelling of 20625334533 in words is "twenty billion, six hundred twenty-five million, three hundred thirty-four thousand, five hundred thirty-three".