551000605 has 4 divisors (see below), whose sum is σ = 661200732. Its totient is φ = 440800480.

The previous prime is 551000573. The next prime is 551000623. The reversal of 551000605 is 506000155.

551000605 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.

It can be written as a sum of positive squares in 2 ways, for example, as 354832569 + 196168036 = 18837^2 + 14006^2 .

It is not a de Polignac number, because 551000605 - 2⁵ = 551000573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55100056 + ... + 55100065.

It is an arithmetic number, because the mean of its divisors is an integer number (165300183).

Almost surely, 2^551000605 is an apocalyptic number.

It is an amenable number.

551000605 is a deficient number, since it is larger than the sum of its proper divisors (110200127).

551000605 is a wasteful number, since it uses less digits than its factorization.

551000605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110200126.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 551000605 is about 23473.4020755407. The cubic root of 551000605 is about 819.8178283597.

The spelling of 551000605 in words is "five hundred fifty-one million, six hundred five", and thus it is an aban number.