1550072230203 has 32 divisors (see below), whose sum is σ = 2410343424000. Its totient is φ = 885709913088.

The previous prime is 1550072230181. The next prime is 1550072230303. The reversal of 1550072230203 is 3020322700551.

It is a happy number.

It is not a de Polignac number, because 1550072230203 - 2⁸ = 1550072229947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1550072230303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39363238 + ... + 39402596.

It is an arithmetic number, because the mean of its divisors is an integer number (75323232000).

Almost surely, 2^{1550072230203} is an apocalyptic number.

1550072230203 is a deficient number, since it is larger than the sum of its proper divisors (860271193797).

1550072230203 is an equidigital number, since it uses as much as digits as its factorization.

1550072230203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77656 (or 77642 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

Adding to 1550072230203 its reverse (3020322700551), we get a palindrome (4570394930754).

The spelling of 1550072230203 in words is "one trillion, five hundred fifty billion, seventy-two million, two hundred thirty thousand, two hundred three".