20475055033 has 4 divisors (see below), whose sum is σ = 20476476900. Its totient is φ = 20473633168.

The previous prime is 20475055019. The next prime is 20475055087. The reversal of 20475055033 is 33055057402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33055057402 = 2 ⋅16527528701.

It can be written as a sum of positive squares in 2 ways, for example, as 12085044624 + 8390010409 = 109932^2 + 91597^2 .

It is a cyclic number.

It is not a de Polignac number, because 20475055033 - 2¹³ = 20475046841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20475055033.

It is not an unprimeable number, because it can be changed into a prime (20475050033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689110 + ... + 718207.

It is an arithmetic number, because the mean of its divisors is an integer number (5119119225).

Almost surely, 2^20475055033 is an apocalyptic number.

It is an amenable number.

20475055033 is a deficient number, since it is larger than the sum of its proper divisors (1421867).

20475055033 is a wasteful number, since it uses less digits than its factorization.

20475055033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421866.

The product of its (nonzero) digits is 63000, while the sum is 34.

The spelling of 20475055033 in words is "twenty billion, four hundred seventy-five million, fifty-five thousand, thirty-three".