55869017 has 4 divisors (see below), whose sum is σ = 56634420. Its totient is φ = 55103616.

The previous prime is 55869007. The next prime is 55869029. The reversal of 55869017 is 71096855.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71096855 = 5 ⋅14219371.

It can be written as a sum of positive squares in 2 ways, for example, as 37687321 + 18181696 = 6139^2 + 4264^2 .

It is a cyclic number.

It is not a de Polignac number, because 55869017 - 2¹⁰ = 55867993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55869007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382592 + ... + 382737.

It is an arithmetic number, because the mean of its divisors is an integer number (14158605).

Almost surely, 2^55869017 is an apocalyptic number.

It is an amenable number.

55869017 is a deficient number, since it is larger than the sum of its proper divisors (765403).

55869017 is an equidigital number, since it uses as much as digits as its factorization.

55869017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765402.

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 55869017 is about 7474.5579802420. The cubic root of 55869017 is about 382.2877162303.

The spelling of 55869017 in words is "fifty-five million, eight hundred sixty-nine thousand, seventeen".