20453633053 has 4 divisors (see below), whose sum is σ = 23375580640. Its totient is φ = 17531685468.

The previous prime is 20453633033. The next prime is 20453633063. The reversal of 20453633053 is 35033635402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35033635402 = 2 ⋅17516817701.

It is a cyclic number.

It is not a de Polignac number, because 20453633053 - 2⁹ = 20453632541 is a prime.

It is a super-2 number, since 2×20453633053² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20453633023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1460973783 + ... + 1460973796.

It is an arithmetic number, because the mean of its divisors is an integer number (5843895160).

Almost surely, 2^20453633053 is an apocalyptic number.

It is an amenable number.

20453633053 is a deficient number, since it is larger than the sum of its proper divisors (2921947587).

20453633053 is an equidigital number, since it uses as much as digits as its factorization.

20453633053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921947586.

The product of its (nonzero) digits is 97200, while the sum is 34.

The spelling of 20453633053 in words is "twenty billion, four hundred fifty-three million, six hundred thirty-three thousand, fifty-three".