55366417 has 4 divisors (see below), whose sum is σ = 55410660. Its totient is φ = 55322176.

The previous prime is 55366391. The next prime is 55366429. The reversal of 55366417 is 71466355.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71466355 = 5 ⋅14293271.

It can be written as a sum of positive squares in 2 ways, for example, as 21911761 + 33454656 = 4681^2 + 5784^2 .

It is a cyclic number.

It is not a de Polignac number, because 55366417 - 2¹¹ = 55364369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55366447) 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, 20188 + ... + 22765.

It is an arithmetic number, because the mean of its divisors is an integer number (13852665).

Almost surely, 2^55366417 is an apocalyptic number.

It is an amenable number.

55366417 is a deficient number, since it is larger than the sum of its proper divisors (44243).

55366417 is a wasteful number, since it uses less digits than its factorization.

55366417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44242.

The product of its digits is 75600, while the sum is 37.

The square root of 55366417 is about 7440.8613076713. The cubic root of 55366417 is about 381.1379026524.

The spelling of 55366417 in words is "fifty-five million, three hundred sixty-six thousand, four hundred seventeen".