55816599 has 8 divisors (see below), whose sum is σ = 74834032. Its totient is φ = 37005120.

The previous prime is 55816597. The next prime is 55816633. The reversal of 55816599 is 99561855.

It is a happy number.

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

It is not a de Polignac number, because 55816599 - 2¹ = 55816597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55816597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50854 + ... + 51939.

It is an arithmetic number, because the mean of its divisors is an integer number (9354254).

Almost surely, 2^55816599 is an apocalyptic number.

55816599 is a deficient number, since it is larger than the sum of its proper divisors (19017433).

55816599 is a wasteful number, since it uses less digits than its factorization.

55816599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102977.

The product of its digits is 486000, while the sum is 48.

The square root of 55816599 is about 7471.0507293151. The cubic root of 55816599 is about 382.1681208574.

The spelling of 55816599 in words is "fifty-five million, eight hundred sixteen thousand, five hundred ninety-nine".