20653254003 has 4 divisors (see below), whose sum is σ = 27537672008. Its totient is φ = 13768836000.

The previous prime is 20653253989. The next prime is 20653254053. The reversal of 20653254003 is 30045235602.

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

It is not a de Polignac number, because 20653254003 - 2¹⁰ = 20653252979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20653254053) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3442208998 + ... + 3442209003.

It is an arithmetic number, because the mean of its divisors is an integer number (6884418002).

Almost surely, 2^20653254003 is an apocalyptic number.

20653254003 is a deficient number, since it is larger than the sum of its proper divisors (6884418005).

20653254003 is an equidigital number, since it uses as much as digits as its factorization.

20653254003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6884418004.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 20653254003 its reverse (30045235602), we get a palindrome (50698489605).

The spelling of 20653254003 in words is "twenty billion, six hundred fifty-three million, two hundred fifty-four thousand, three".