20043253305 has 16 divisors (see below), whose sum is σ = 35632450560. Its totient is φ = 10689735024.

The previous prime is 20043253301. The next prime is 20043253319. The reversal of 20043253305 is 50335234002.

20043253305 is a `hidden beast` number, since 2 + 0 + 0 + 4 + 325 + 330 + 5 = 666.

It is not a de Polignac number, because 20043253305 - 2² = 20043253301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20043253301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74234137 + ... + 74234406.

It is an arithmetic number, because the mean of its divisors is an integer number (2227028160).

Almost surely, 2^20043253305 is an apocalyptic number.

It is an amenable number.

20043253305 is a deficient number, since it is larger than the sum of its proper divisors (15589197255).

20043253305 is a wasteful number, since it uses less digits than its factorization.

20043253305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148468557 (or 148468551 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

Adding to 20043253305 its reverse (50335234002), we get a palindrome (70378487307).

The spelling of 20043253305 in words is "twenty billion, forty-three million, two hundred fifty-three thousand, three hundred five".