55089599 has 4 divisors (see below), whose sum is σ = 55427736. Its totient is φ = 54751464.

The previous prime is 55089583. The next prime is 55089613. The reversal of 55089599 is 99598055.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55089599 - 2⁴ = 55089583 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55083599) 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, 168824 + ... + 169149.

It is an arithmetic number, because the mean of its divisors is an integer number (13856934).

Almost surely, 2^55089599 is an apocalyptic number.

55089599 is a deficient number, since it is larger than the sum of its proper divisors (338137).

55089599 is a wasteful number, since it uses less digits than its factorization.

55089599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338136.

The product of its (nonzero) digits is 729000, while the sum is 50.

The square root of 55089599 is about 7422.2367922345. The cubic root of 55089599 is about 380.5016435757.

The spelling of 55089599 in words is "fifty-five million, eighty-nine thousand, five hundred ninety-nine".