20524533133 has 8 divisors (see below), whose sum is σ = 22104495000. Its totient is φ = 18944735808.

The previous prime is 20524533091. The next prime is 20524533157. The reversal of 20524533133 is 33133542502.

It can be written as a sum of positive squares in 4 ways, for example, as 131836324 + 20392696809 = 11482^2 + 142803^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20524533133 is a prime.

It is a super-2 number, since 2×20524533133² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20524533095 and 20524533104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20524533193) 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, 370743 + ... + 422491.

It is an arithmetic number, because the mean of its divisors is an integer number (2763061875).

Almost surely, 2^20524533133 is an apocalyptic number.

It is an amenable number.

20524533133 is a deficient number, since it is larger than the sum of its proper divisors (1579961867).

20524533133 is a wasteful number, since it uses less digits than its factorization.

20524533133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82271.

The product of its (nonzero) digits is 32400, while the sum is 31.

The spelling of 20524533133 in words is "twenty billion, five hundred twenty-four million, five hundred thirty-three thousand, one hundred thirty-three".