550320101 has 4 divisors (see below), whose sum is σ = 559341804. Its totient is φ = 541298400.

The previous prime is 550320079. The next prime is 550320119. The reversal of 550320101 is 101023055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56325025 + 493995076 = 7505^2 + 22226^2 .

It is a cyclic number.

It is not a de Polignac number, because 550320101 - 2¹⁸ = 550057957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550320101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550320151) 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, 4510760 + ... + 4510881.

It is an arithmetic number, because the mean of its divisors is an integer number (139835451).

Almost surely, 2^550320101 is an apocalyptic number.

It is an amenable number.

550320101 is a deficient number, since it is larger than the sum of its proper divisors (9021703).

550320101 is an equidigital number, since it uses as much as digits as its factorization.

550320101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9021702.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 550320101 is about 23458.9023826777. The cubic root of 550320101 is about 819.4801885975.

Adding to 550320101 its reverse (101023055), we get a palindrome (651343156).

The spelling of 550320101 in words is "five hundred fifty million, three hundred twenty thousand, one hundred one".