55236559 has 8 divisors (see below), whose sum is σ = 63268128. Its totient is φ = 47240160.

The previous prime is 55236541. The next prime is 55236569. The reversal of 55236559 is 95563255.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55236559 - 2⁵ = 55236527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55236569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5332 + ... + 11785.

It is an arithmetic number, because the mean of its divisors is an integer number (7908516).

Almost surely, 2^55236559 is an apocalyptic number.

55236559 is a deficient number, since it is larger than the sum of its proper divisors (8031569).

55236559 is a wasteful number, since it uses less digits than its factorization.

55236559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17585.

The product of its digits is 202500, while the sum is 40.

The square root of 55236559 is about 7432.1301791613. The cubic root of 55236559 is about 380.8396920904.

The spelling of 55236559 in words is "fifty-five million, two hundred thirty-six thousand, five hundred fifty-nine".