55888438 has 4 divisors (see below), whose sum is σ = 83832660. Its totient is φ = 27944218.

The previous prime is 55888421. The next prime is 55888439. The reversal of 55888438 is 83488855.

It is a happy number.

55888438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83488855 = 5 ⋅16697771.

It is a junction number, because it is equal to n+sod(n) for n = 55888391 and 55888400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55888439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13972108 + ... + 13972111.

It is an arithmetic number, because the mean of its divisors is an integer number (20958165).

Almost surely, 2^55888438 is an apocalyptic number.

55888438 is a deficient number, since it is larger than the sum of its proper divisors (27944222).

55888438 is a wasteful number, since it uses less digits than its factorization.

55888438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27944221.

The product of its digits is 1228800, while the sum is 49.

The square root of 55888438 is about 7475.8570077283. The cubic root of 55888438 is about 382.3320076225.

The spelling of 55888438 in words is "fifty-five million, eight hundred eighty-eight thousand, four hundred thirty-eight".