550243102521 has 16 divisors (see below), whose sum is σ = 843098092928. Its totient is φ = 312687475200.

The previous prime is 550243102489. The next prime is 550243102561. The reversal of 550243102521 is 125201342055.

It is not a de Polignac number, because 550243102521 - 2⁵ = 550243102489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550243102561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72377560 + ... + 72385161.

It is an arithmetic number, because the mean of its divisors is an integer number (52693630808).

Almost surely, 2^550243102521 is an apocalyptic number.

It is an amenable number.

550243102521 is a deficient number, since it is larger than the sum of its proper divisors (292854990407).

550243102521 is a wasteful number, since it uses less digits than its factorization.

550243102521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144762912.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 550243102521 its reverse (125201342055), we get a palindrome (675444444576).

The spelling of 550243102521 in words is "five hundred fifty billion, two hundred forty-three million, one hundred two thousand, five hundred twenty-one".