551230405 has 16 divisors (see below), whose sum is σ = 746496000. Its totient is φ = 387069760.

The previous prime is 551230391. The next prime is 551230409. The reversal of 551230405 is 504032155.

551230405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 551230405 - 2⁹ = 551229893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 551230405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551230409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171205 + ... + 174394.

It is an arithmetic number, because the mean of its divisors is an integer number (46656000).

Almost surely, 2^551230405 is an apocalyptic number.

551230405 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

551230405 is a deficient number, since it is larger than the sum of its proper divisors (195265595).

551230405 is a wasteful number, since it uses less digits than its factorization.

551230405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345644.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 551230405 is about 23478.2964671630. The cubic root of 551230405 is about 819.9317834388.

The spelling of 551230405 in words is "five hundred fifty-one million, two hundred thirty thousand, four hundred five".