55196009 has 4 divisors (see below), whose sum is σ = 60213840. Its totient is φ = 50178180.

The previous prime is 55195999. The next prime is 55196023. The reversal of 55196009 is 90069155.

55196009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55196009 - 2⁴ = 55195993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55196009.

It is not an unprimeable number, because it can be changed into a prime (55196509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2508899 + ... + 2508920.

It is an arithmetic number, because the mean of its divisors is an integer number (15053460).

Almost surely, 2^55196009 is an apocalyptic number.

It is an amenable number.

55196009 is a deficient number, since it is larger than the sum of its proper divisors (5017831).

55196009 is a wasteful number, since it uses less digits than its factorization.

55196009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5017830.

The product of its (nonzero) digits is 12150, while the sum is 35.

The square root of 55196009 is about 7429.4016582764. The cubic root of 55196009 is about 380.7464758683.

The spelling of 55196009 in words is "fifty-five million, one hundred ninety-six thousand, nine".