20053949433 has 32 divisors (see below), whose sum is σ = 30654278400. Its totient is φ = 11423517696.

The previous prime is 20053949429. The next prime is 20053949473. The reversal of 20053949433 is 33494935002.

It is not a de Polignac number, because 20053949433 - 2² = 20053949429 is a prime.

It is a super-2 number, since 2×20053949433² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20053949473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16809085 + ... + 16810277.

It is an arithmetic number, because the mean of its divisors is an integer number (957946200).

Almost surely, 2^20053949433 is an apocalyptic number.

It is an amenable number.

20053949433 is a deficient number, since it is larger than the sum of its proper divisors (10600328967).

20053949433 is a wasteful number, since it uses less digits than its factorization.

20053949433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3041.

The product of its (nonzero) digits is 349920, while the sum is 42.

The spelling of 20053949433 in words is "twenty billion, fifty-three million, nine hundred forty-nine thousand, four hundred thirty-three".