550201220501 has 4 divisors (see below), whose sum is σ = 550225356972. Its totient is φ = 550177084032.

The previous prime is 550201220431. The next prime is 550201220519. The reversal of 550201220501 is 105022102055.

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 354532121476 + 195669099025 = 595426^2 + 442345^2 .

It is a cyclic number.

It is not a de Polignac number, because 550201220501 - 2¹⁴ = 550201204117 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 (550201220801) 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, 12034010 + ... + 12079643.

It is an arithmetic number, because the mean of its divisors is an integer number (137556339243).

Almost surely, 2^550201220501 is an apocalyptic number.

It is an amenable number.

550201220501 is a deficient number, since it is larger than the sum of its proper divisors (24136471).

550201220501 is a wasteful number, since it uses less digits than its factorization.

550201220501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24136470.

The product of its (nonzero) digits is 1000, while the sum is 23.

Adding to 550201220501 its reverse (105022102055), we get a palindrome (655223322556).

The spelling of 550201220501 in words is "five hundred fifty billion, two hundred one million, two hundred twenty thousand, five hundred one".