551001061 has 16 divisors (see below), whose sum is σ = 603175104. Its totient is φ = 500281344.

The previous prime is 551001049. The next prime is 551001067. The reversal of 551001061 is 160100155.

It is a cyclic number.

It is not a de Polignac number, because 551001061 - 2¹¹ = 550999013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551001067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276310 + ... + 278296.

It is an arithmetic number, because the mean of its divisors is an integer number (37698444).

Almost surely, 2^551001061 is an apocalyptic number.

It is an amenable number.

551001061 is a deficient number, since it is larger than the sum of its proper divisors (52174043).

551001061 is a wasteful number, since it uses less digits than its factorization.

551001061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 551001061 is about 23473.4117886600. The cubic root of 551001061 is about 819.8180545161.

The spelling of 551001061 in words is "five hundred fifty-one million, one thousand, sixty-one".