20053452493 has 2 divisors, whose sum is σ = 20053452494. Its totient is φ = 20053452492.

The previous prime is 20053452481. The next prime is 20053452553. The reversal of 20053452493 is 39425435002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14694773284 + 5358679209 = 121222^2 + 73203^2 .

It is a cyclic number.

It is not a de Polignac number, because 20053452493 - 2²⁵ = 20019898061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20053452403) 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, 10026726246 + 10026726247.

It is an arithmetic number, because the mean of its divisors is an integer number (10026726247).

Almost surely, 2^20053452493 is an apocalyptic number.

It is an amenable number.

20053452493 is a deficient number, since it is larger than the sum of its proper divisors (1).

20053452493 is an equidigital number, since it uses as much as digits as its factorization.

20053452493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 20053452493 its reverse (39425435002), we get a palindrome (59478887495).

The spelling of 20053452493 in words is "twenty billion, fifty-three million, four hundred fifty-two thousand, four hundred ninety-three".