20375275433 has 2 divisors, whose sum is σ = 20375275434. Its totient is φ = 20375275432.

The previous prime is 20375275429. The next prime is 20375275439. The reversal of 20375275433 is 33457257302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18202596889 + 2172678544 = 134917^2 + 46612^2 .

It is a cyclic number.

It is not a de Polignac number, because 20375275433 - 2² = 20375275429 is a prime.

It is a super-2 number, since 2×20375275433² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20375275439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10187637716 + 10187637717.

It is an arithmetic number, because the mean of its divisors is an integer number (10187637717).

Almost surely, 2^20375275433 is an apocalyptic number.

It is an amenable number.

20375275433 is a deficient number, since it is larger than the sum of its proper divisors (1).

20375275433 is an equidigital number, since it uses as much as digits as its factorization.

20375275433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 529200, while the sum is 41.

The spelling of 20375275433 in words is "twenty billion, three hundred seventy-five million, two hundred seventy-five thousand, four hundred thirty-three".