13550022003 has 8 divisors (see below), whose sum is σ = 20647652608. Its totient is φ = 7742869704.

The previous prime is 13550021977. The next prime is 13550022077. The reversal of 13550022003 is 30022005531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13550022003 - 2¹² = 13550017907 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 645239143 = 13550022003 / (1 + 3 + 5 + 5 + 0 + 0 + 2 + 2 + 0 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13550022803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322619551 + ... + 322619592.

It is an arithmetic number, because the mean of its divisors is an integer number (2580956576).

Almost surely, 2^13550022003 is an apocalyptic number.

13550022003 is a deficient number, since it is larger than the sum of its proper divisors (7097630605).

13550022003 is an equidigital number, since it uses as much as digits as its factorization.

13550022003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645239153.

The product of its (nonzero) digits is 900, while the sum is 21.

Adding to 13550022003 its reverse (30022005531), we get a palindrome (43572027534).

The spelling of 13550022003 in words is "thirteen billion, five hundred fifty million, twenty-two thousand, three".