20075013533 has 8 divisors (see below), whose sum is σ = 21263600952. Its totient is φ = 18887282176.

The previous prime is 20075013523. The next prime is 20075013577. The reversal of 20075013533 is 33531057002.

It can be written as a sum of positive squares in 4 ways, for example, as 6516041284 + 13558972249 = 80722^2 + 116443^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20075013533 - 2²⁰ = 20073964957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20075013496 and 20075013505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20075013503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165410 + ... + 259827.

It is an arithmetic number, because the mean of its divisors is an integer number (2657950119).

Almost surely, 2^20075013533 is an apocalyptic number.

It is an amenable number.

20075013533 is a deficient number, since it is larger than the sum of its proper divisors (1188587419).

20075013533 is a wasteful number, since it uses less digits than its factorization.

20075013533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428031.

The product of its (nonzero) digits is 9450, while the sum is 29.

The spelling of 20075013533 in words is "twenty billion, seventy-five million, thirteen thousand, five hundred thirty-three".