20453633051 has 4 divisors (see below), whose sum is σ = 20466890352. Its totient is φ = 20440375752.

The previous prime is 20453633033. The next prime is 20453633063. The reversal of 20453633051 is 15033635402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15033635402 = 2 ⋅7516817701.

It is a cyclic number.

It is not a de Polignac number, because 20453633051 - 2⁶ = 20453632987 is a prime.

It is a super-2 number, since 2×20453633051² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20453632999 and 20453633017.

It is not an unprimeable number, because it can be changed into a prime (20453633071) 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, 6626336 + ... + 6629421.

It is an arithmetic number, because the mean of its divisors is an integer number (5116722588).

Almost surely, 2^20453633051 is an apocalyptic number.

20453633051 is a deficient number, since it is larger than the sum of its proper divisors (13257301).

20453633051 is a wasteful number, since it uses less digits than its factorization.

20453633051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13257300.

The product of its (nonzero) digits is 32400, while the sum is 32.

The spelling of 20453633051 in words is "twenty billion, four hundred fifty-three million, six hundred thirty-three thousand, fifty-one".