55346689 has 4 divisors (see below), whose sum is σ = 56047360. Its totient is φ = 54646020.

The previous prime is 55346663. The next prime is 55346699. The reversal of 55346689 is 98664355.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98664355 = 5 ⋅19732871.

It is a cyclic number.

It is not a de Polignac number, because 55346689 - 2¹³ = 55338497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55346659) 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, 350217 + ... + 350374.

It is an arithmetic number, because the mean of its divisors is an integer number (14011840).

Almost surely, 2^55346689 is an apocalyptic number.

It is an amenable number.

55346689 is a deficient number, since it is larger than the sum of its proper divisors (700671).

55346689 is an equidigital number, since it uses as much as digits as its factorization.

55346689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700670.

The product of its digits is 777600, while the sum is 46.

The square root of 55346689 is about 7439.5355365775. The cubic root of 55346689 is about 381.0926286266.

The spelling of 55346689 in words is "fifty-five million, three hundred forty-six thousand, six hundred eighty-nine".