55616207 has 4 divisors (see below), whose sum is σ = 55727280. Its totient is φ = 55505136.

The previous prime is 55616191. The next prime is 55616219. The reversal of 55616207 is 70261655.

It is a happy number.

55616207 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.

It is a cyclic number.

It is not a de Polignac number, because 55616207 - 2⁴ = 55616191 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 (55616107) 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, 54782 + ... + 55787.

It is an arithmetic number, because the mean of its divisors is an integer number (13931820).

Almost surely, 2^55616207 is an apocalyptic number.

55616207 is a deficient number, since it is larger than the sum of its proper divisors (111073).

55616207 is a wasteful number, since it uses less digits than its factorization.

55616207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111072.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 55616207 is about 7457.6274377311. The cubic root of 55616207 is about 381.7102208283.

The spelling of 55616207 in words is "fifty-five million, six hundred sixteen thousand, two hundred seven".