20050005245 has 16 divisors (see below), whose sum is σ = 24333754368. Its totient is φ = 15857856000.

The previous prime is 20050005233. The next prime is 20050005259. The reversal of 20050005245 is 54250005002.

It is not a de Polignac number, because 20050005245 - 2¹² = 20050001149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20050005245.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447620 + ... + 490370.

It is an arithmetic number, because the mean of its divisors is an integer number (1520859648).

Almost surely, 2^20050005245 is an apocalyptic number.

It is an amenable number.

20050005245 is a deficient number, since it is larger than the sum of its proper divisors (4283749123).

20050005245 is an equidigital number, since it uses as much as digits as its factorization.

20050005245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43820.

The product of its (nonzero) digits is 2000, while the sum is 23.

The spelling of 20050005245 in words is "twenty billion, fifty million, five thousand, two hundred forty-five".