55113043 has 4 divisors (see below), whose sum is σ = 55258840. Its totient is φ = 54967248.

The previous prime is 55113041. The next prime is 55113059. The reversal of 55113043 is 34031155.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34031155 = 5 ⋅6806231.

It is a cyclic number.

It is not a de Polignac number, because 55113043 - 2¹ = 55113041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55113041) 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, 72330 + ... + 73087.

It is an arithmetic number, because the mean of its divisors is an integer number (13814710).

Almost surely, 2^55113043 is an apocalyptic number.

55113043 is a deficient number, since it is larger than the sum of its proper divisors (145797).

55113043 is a wasteful number, since it uses less digits than its factorization.

55113043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145796.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 55113043 is about 7423.8159325242. The cubic root of 55113043 is about 380.5556115091. Note that the first 3 decimals are identical.

Adding to 55113043 its reverse (34031155), we get a palindrome (89144198).

The spelling of 55113043 in words is "fifty-five million, one hundred thirteen thousand, forty-three".