20533031044 has 12 divisors (see below), whose sum is σ = 35934609564. Its totient is φ = 10265999744.

The previous prime is 20533031027. The next prime is 20533031053. The reversal of 20533031044 is 44013033502.

It can be written as a sum of positive squares in 2 ways, for example, as 3230785600 + 17302245444 = 56840^2 + 131538^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31129 + ... + 205024.

It is an arithmetic number, because the mean of its divisors is an integer number (2994550797).

Almost surely, 2^20533031044 is an apocalyptic number.

It is an amenable number.

20533031044 is a deficient number, since it is larger than the sum of its proper divisors (15401578520).

20533031044 is a wasteful number, since it uses less digits than its factorization.

20533031044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257894 (or 257892 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 20533031044 its reverse (44013033502), we get a palindrome (64546064546).

The spelling of 20533031044 in words is "twenty billion, five hundred thirty-three million, thirty-one thousand, forty-four".