55417 has 4 divisors (see below), whose sum is σ = 55936. Its totient is φ = 54900.

The previous prime is 55411. The next prime is 55439. The reversal of 55417 is 71455.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55417 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (55411) 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, 33 + ... + 334.

It is an arithmetic number, because the mean of its divisors is an integer number (13984).

2⁵⁵⁴¹⁷ is an apocalyptic number.

It is an amenable number.

55417 is a deficient number, since it is larger than the sum of its proper divisors (519).

55417 is a wasteful number, since it uses less digits than its factorization.

55417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518.

The product of its digits is 700, while the sum is 22.

The square root of 55417 is about 235.4081561884. The cubic root of 55417 is about 38.1253937073.

The spelling of 55417 in words is "fifty-five thousand, four hundred seventeen".