20053413553 has 2 divisors, whose sum is σ = 20053413554. Its totient is φ = 20053413552.

The previous prime is 20053413547. The next prime is 20053413563. The reversal of 20053413553 is 35531435002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14613908544 + 5439505009 = 120888^2 + 73753^2 .

It is a cyclic number.

It is not a de Polignac number, because 20053413553 - 2⁹ = 20053413041 is a prime.

It is not a weakly prime, because it can be changed into another prime (20053413563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10026706776 + 10026706777.

It is an arithmetic number, because the mean of its divisors is an integer number (10026706777).

Almost surely, 2^20053413553 is an apocalyptic number.

It is an amenable number.

20053413553 is a deficient number, since it is larger than the sum of its proper divisors (1).

20053413553 is an equidigital number, since it uses as much as digits as its factorization.

20053413553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 20053413553 its reverse (35531435002), we get a palindrome (55584848555).

The spelling of 20053413553 in words is "twenty billion, fifty-three million, four hundred thirteen thousand, five hundred fifty-three".