550322021021 has 4 divisors (see below), whose sum is σ = 550637032512. Its totient is φ = 550007009532.

The previous prime is 550322021003. The next prime is 550322021099. The reversal of 550322021021 is 120120223055.

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.

It is a cyclic number.

It is not a de Polignac number, because 550322021021 - 2⁶ = 550322020957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550322020021) 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, 157503125 + ... + 157506618.

It is an arithmetic number, because the mean of its divisors is an integer number (137659258128).

Almost surely, 2^550322021021 is an apocalyptic number.

It is an amenable number.

550322021021 is a deficient number, since it is larger than the sum of its proper divisors (315011491).

550322021021 is a wasteful number, since it uses less digits than its factorization.

550322021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315011490.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 550322021021 its reverse (120120223055), we get a palindrome (670442244076).

The spelling of 550322021021 in words is "five hundred fifty billion, three hundred twenty-two million, twenty-one thousand, twenty-one".