55613207 has 8 divisors (see below), whose sum is σ = 60295200. Its totient is φ = 50988960.

The previous prime is 55613197. The next prime is 55613219. The reversal of 55613207 is 70231655.

55613207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55613207 - 2¹² = 55609111 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 55613207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55613407) 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 7 ways as a sum of consecutive naturals, for example, 12419 + ... + 16292.

It is an arithmetic number, because the mean of its divisors is an integer number (7536900).

Almost surely, 2^55613207 is an apocalyptic number.

55613207 is a deficient number, since it is larger than the sum of its proper divisors (4681993).

55613207 is a wasteful number, since it uses less digits than its factorization.

55613207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28873.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 55613207 is about 7457.4262986636. The cubic root of 55613207 is about 381.7033574138.

The spelling of 55613207 in words is "fifty-five million, six hundred thirteen thousand, two hundred seven".