20633425733 has 2 divisors, whose sum is σ = 20633425734. Its totient is φ = 20633425732.

The previous prime is 20633425667. The next prime is 20633425781. The reversal of 20633425733 is 33752433602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17972619844 + 2660805889 = 134062^2 + 51583^2 .

It is a cyclic number.

It is not a de Polignac number, because 20633425733 - 2¹⁰ = 20633424709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20633425133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10316712866 + 10316712867.

It is an arithmetic number, because the mean of its divisors is an integer number (10316712867).

Almost surely, 2^20633425733 is an apocalyptic number.

It is an amenable number.

20633425733 is a deficient number, since it is larger than the sum of its proper divisors (1).

20633425733 is an equidigital number, since it uses as much as digits as its factorization.

20633425733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 38.

The spelling of 20633425733 in words is "twenty billion, six hundred thirty-three million, four hundred twenty-five thousand, seven hundred thirty-three".