551442121 has 8 divisors (see below), whose sum is σ = 558267840. Its totient is φ = 544644912.

The previous prime is 551442119. The next prime is 551442179. The reversal of 551442121 is 121244155.

551442121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 551442121 - 2¹ = 551442119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551449121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33186 + ... + 46948.

It is an arithmetic number, because the mean of its divisors is an integer number (69783480).

Almost surely, 2^551442121 is an apocalyptic number.

It is an amenable number.

551442121 is a deficient number, since it is larger than the sum of its proper divisors (6825719).

551442121 is a wasteful number, since it uses less digits than its factorization.

551442121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14255.

The product of its digits is 1600, while the sum is 25.

The square root of 551442121 is about 23482.8047941467. The cubic root of 551442121 is about 820.0367428509.

Adding to 551442121 its reverse (121244155), we get a palindrome (672686276).

The spelling of 551442121 in words is "five hundred fifty-one million, four hundred forty-two thousand, one hundred twenty-one".