55686119 has 4 divisors (see below), whose sum is σ = 57606360. Its totient is φ = 53765880.

The previous prime is 55686109. The next prime is 55686121. The reversal of 55686119 is 91168655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91168655 = 5 ⋅18233731.

It is a cyclic number.

It is not a de Polignac number, because 55686119 - 2¹² = 55682023 is a prime.

It is a super-3 number, since 3×55686119³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55686109) 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, 960077 + ... + 960134.

It is an arithmetic number, because the mean of its divisors is an integer number (14401590).

Almost surely, 2^55686119 is an apocalyptic number.

55686119 is a deficient number, since it is larger than the sum of its proper divisors (1920241).

55686119 is a wasteful number, since it uses less digits than its factorization.

55686119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920240.

The product of its digits is 64800, while the sum is 41.

The square root of 55686119 is about 7462.3132472444. The cubic root of 55686119 is about 381.8700959938.

The spelling of 55686119 in words is "fifty-five million, six hundred eighty-six thousand, one hundred nineteen".