551607 has 8 divisors (see below), whose sum is σ = 840576. Its totient is φ = 315192.

The previous prime is 551597. The next prime is 551651. The reversal of 551607 is 706155.

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

It is not a de Polignac number, because 551607 - 2⁶ = 551543 is a prime.

551607 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13113 + ... + 13154.

It is an arithmetic number, because the mean of its divisors is an integer number (105072).

2⁵⁵¹⁶⁰⁷ is an apocalyptic number.

551607 is a deficient number, since it is larger than the sum of its proper divisors (288969).

551607 is a wasteful number, since it uses less digits than its factorization.

551607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26277.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 551607 is about 742.7024976395. The cubic root of 551607 is about 82.0118463948.

The spelling of 551607 in words is "five hundred fifty-one thousand, six hundred seven".