55434943 has 4 divisors (see below), whose sum is σ = 58695840. Its totient is φ = 52174048.

The previous prime is 55434941. The next prime is 55434971. The reversal of 55434943 is 34943455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34943455 = 5 ⋅6988691.

It is a cyclic number.

It is not a de Polignac number, because 55434943 - 2¹ = 55434941 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 (55434941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1630423 + ... + 1630456.

It is an arithmetic number, because the mean of its divisors is an integer number (14673960).

Almost surely, 2^55434943 is an apocalyptic number.

55434943 is a deficient number, since it is larger than the sum of its proper divisors (3260897).

55434943 is a wasteful number, since it uses less digits than its factorization.

55434943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3260896.

The product of its digits is 129600, while the sum is 37.

The square root of 55434943 is about 7445.4645926228. The cubic root of 55434943 is about 381.2950802915.

The spelling of 55434943 in words is "fifty-five million, four hundred thirty-four thousand, nine hundred forty-three".