55113445 has 4 divisors (see below), whose sum is σ = 66136140. Its totient is φ = 44090752.

The previous prime is 55113413. The next prime is 55113449. The reversal of 55113445 is 54431155.

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

It can be written as a sum of positive squares in 2 ways, for example, as 43864129 + 11249316 = 6623^2 + 3354^2 .

It is a cyclic number.

It is not a de Polignac number, because 55113445 - 2⁵ = 55113413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55113449) 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, 5511340 + ... + 5511349.

It is an arithmetic number, because the mean of its divisors is an integer number (16534035).

Almost surely, 2^55113445 is an apocalyptic number.

It is an amenable number.

55113445 is a deficient number, since it is larger than the sum of its proper divisors (11022695).

55113445 is a wasteful number, since it uses less digits than its factorization.

55113445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11022694.

The product of its digits is 6000, while the sum is 28.

The square root of 55113445 is about 7423.8430074996. The cubic root of 55113445 is about 380.5565367770.

The spelling of 55113445 in words is "fifty-five million, one hundred thirteen thousand, four hundred forty-five".