551560161 has 8 divisors (see below), whose sum is σ = 735523360. Its totient is φ = 367651872.

The previous prime is 551560151. The next prime is 551560199. The reversal of 551560161 is 161065155.

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

It is not a de Polignac number, because 551560161 - 2¹⁷ = 551429089 is a prime.

It is a super-2 number, since 2×551560161² = 608437222404691842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551560151) 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, 26850 + ... + 42708.

It is an arithmetic number, because the mean of its divisors is an integer number (91940420).

Almost surely, 2^551560161 is an apocalyptic number.

It is an amenable number.

551560161 is a deficient number, since it is larger than the sum of its proper divisors (183963199).

551560161 is a wasteful number, since it uses less digits than its factorization.

551560161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27455.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 551560161 is about 23485.3179880537. The cubic root of 551560161 is about 820.0952501886.

The spelling of 551560161 in words is "five hundred fifty-one million, five hundred sixty thousand, one hundred sixty-one".