550515021241 has 4 divisors (see below), whose sum is σ = 550523210752. Its totient is φ = 550506831732.

The previous prime is 550515021137. The next prime is 550515021311. The reversal of 550515021241 is 142120515055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 142120515055 = 5 ⋅28424103011.

It is a cyclic number.

It is not a de Polignac number, because 550515021241 - 2²¹ = 550512924089 is a prime.

It is a super-2 number, since 2×550515021241² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550515091241) 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, 3993081 + ... + 4128646.

It is an arithmetic number, because the mean of its divisors is an integer number (137630802688).

Almost surely, 2^550515021241 is an apocalyptic number.

It is an amenable number.

550515021241 is a deficient number, since it is larger than the sum of its proper divisors (8189511).

550515021241 is an equidigital number, since it uses as much as digits as its factorization.

550515021241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8189510.

The product of its (nonzero) digits is 10000, while the sum is 31.

Adding to 550515021241 its reverse (142120515055), we get a palindrome (692635536296).

The spelling of 550515021241 in words is "five hundred fifty billion, five hundred fifteen million, twenty-one thousand, two hundred forty-one".