551124521 has 4 divisors (see below), whose sum is σ = 551232000. Its totient is φ = 551017044.

The previous prime is 551124493. The next prime is 551124529. The reversal of 551124521 is 125421155.

551124521 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 551124521 - 2¹⁰ = 551123497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551124529) 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, 45641 + ... + 56438.

It is an arithmetic number, because the mean of its divisors is an integer number (137808000).

Almost surely, 2^551124521 is an apocalyptic number.

It is an amenable number.

551124521 is a deficient number, since it is larger than the sum of its proper divisors (107479).

551124521 is a wasteful number, since it uses less digits than its factorization.

551124521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107478.

The product of its digits is 2000, while the sum is 26.

The square root of 551124521 is about 23476.0414252488. The cubic root of 551124521 is about 819.8792807614.

Adding to 551124521 its reverse (125421155), we get a palindrome (676545676).

The spelling of 551124521 in words is "five hundred fifty-one million, one hundred twenty-four thousand, five hundred twenty-one".