551030143 has 4 divisors (see below), whose sum is σ = 552469248. Its totient is φ = 549591040.

The previous prime is 551030107. The next prime is 551030173. The reversal of 551030143 is 341030155.

It is a happy number.

551030143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341030155 = 5 ⋅68206031.

It is a cyclic number.

It is not a de Polignac number, because 551030143 - 2⁹ = 551029631 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 (551030173) 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, 718978 + ... + 719743.

It is an arithmetic number, because the mean of its divisors is an integer number (138117312).

Almost surely, 2^551030143 is an apocalyptic number.

551030143 is a deficient number, since it is larger than the sum of its proper divisors (1439105).

551030143 is a wasteful number, since it uses less digits than its factorization.

551030143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439104.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 551030143 is about 23474.0312473167. The cubic root of 551030143 is about 819.8324776760.

Adding to 551030143 its reverse (341030155), we get a palindrome (892060298).

It can be divided in two parts, 5510 and 30143, that added together give a palindrome (35653).

The spelling of 551030143 in words is "five hundred fifty-one million, thirty thousand, one hundred forty-three".