55043422 has 16 divisors (see below), whose sum is σ = 94573440. Its totient is φ = 23536728.

The previous prime is 55043419. The next prime is 55043423. The reversal of 55043422 is 22434055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55043423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2329 + ... + 10747.

It is an arithmetic number, because the mean of its divisors is an integer number (5910840).

Almost surely, 2^55043422 is an apocalyptic number.

55043422 is a deficient number, since it is larger than the sum of its proper divisors (39530018).

55043422 is a wasteful number, since it uses less digits than its factorization.

55043422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8895.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 55043422 is about 7419.1254201557. The cubic root of 55043422 is about 380.3952996301.

Adding to 55043422 its reverse (22434055), we get a palindrome (77477477).

The spelling of 55043422 in words is "fifty-five million, forty-three thousand, four hundred twenty-two".