20425469203 has 4 divisors (see below), whose sum is σ = 20503132848. Its totient is φ = 20347805560.

The previous prime is 20425469161. The next prime is 20425469227. The reversal of 20425469203 is 30296452402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20425469203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20425269203) 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, 38831428 + ... + 38831953.

It is an arithmetic number, because the mean of its divisors is an integer number (5125783212).

Almost surely, 2^20425469203 is an apocalyptic number.

20425469203 is a deficient number, since it is larger than the sum of its proper divisors (77663645).

20425469203 is an equidigital number, since it uses as much as digits as its factorization.

20425469203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77663644.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 20425469203 in words is "twenty billion, four hundred twenty-five million, four hundred sixty-nine thousand, two hundred three".