550343401 has 4 divisors (see below), whose sum is σ = 550601172. Its totient is φ = 550085632.

The previous prime is 550343399. The next prime is 550343407. The reversal of 550343401 is 104343055.

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 10989225 + 539354176 = 3315^2 + 23224^2 .

It is a cyclic number.

It is not a de Polignac number, because 550343401 - 2¹ = 550343399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550343407) 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, 125656 + ... + 129961.

It is an arithmetic number, because the mean of its divisors is an integer number (137650293).

Almost surely, 2^550343401 is an apocalyptic number.

It is an amenable number.

550343401 is a deficient number, since it is larger than the sum of its proper divisors (257771).

550343401 is a wasteful number, since it uses less digits than its factorization.

550343401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257770.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 550343401 is about 23459.3989905965. The cubic root of 550343401 is about 819.4917537568.

Adding to 550343401 its reverse (104343055), we get a palindrome (654686456).

The spelling of 550343401 in words is "five hundred fifty million, three hundred forty-three thousand, four hundred one".