20531554283 has 2 divisors, whose sum is σ = 20531554284. Its totient is φ = 20531554282.

The previous prime is 20531554237. The next prime is 20531554319. The reversal of 20531554283 is 38245513502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20531554283 - 2¹⁴ = 20531537899 is a prime.

It is not a weakly prime, because it can be changed into another prime (20531554783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10265777141 + 10265777142.

It is an arithmetic number, because the mean of its divisors is an integer number (10265777142).

Almost surely, 2^20531554283 is an apocalyptic number.

20531554283 is a deficient number, since it is larger than the sum of its proper divisors (1).

20531554283 is an equidigital number, since it uses as much as digits as its factorization.

20531554283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 20531554283 in words is "twenty billion, five hundred thirty-one million, five hundred fifty-four thousand, two hundred eighty-three".