55605113 has 4 divisors (see below), whose sum is σ = 58876020. Its totient is φ = 52334208.

The previous prime is 55605107. The next prime is 55605119. The reversal of 55605113 is 31150655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31150655 = 5 ⋅6230131.

It is an interprime number because it is at equal distance from previous prime (55605107) and next prime (55605119).

It can be written as a sum of positive squares in 2 ways, for example, as 51652969 + 3952144 = 7187^2 + 1988^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55605113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55605119) 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, 1635428 + ... + 1635461.

It is an arithmetic number, because the mean of its divisors is an integer number (14719005).

Almost surely, 2^55605113 is an apocalyptic number.

It is an amenable number.

55605113 is a deficient number, since it is larger than the sum of its proper divisors (3270907).

55605113 is a wasteful number, since it uses less digits than its factorization.

55605113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3270906.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 55605113 is about 7456.8835983942. The cubic root of 55605113 is about 381.6848386899.

Adding to 55605113 its reverse (31150655), we get a palindrome (86755768).

The spelling of 55605113 in words is "fifty-five million, six hundred five thousand, one hundred thirteen".