55727242 has 8 divisors (see below), whose sum is σ = 85369536. Its totient is φ = 27270732.

The previous prime is 55727239. The next prime is 55727249. The reversal of 55727242 is 24272755.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 55727198 and 55727207.

It is not an unprimeable number, because it can be changed into a prime (55727249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296328 + ... + 296515.

It is an arithmetic number, because the mean of its divisors is an integer number (10671192).

Almost surely, 2^55727242 is an apocalyptic number.

55727242 is a deficient number, since it is larger than the sum of its proper divisors (29642294).

55727242 is a wasteful number, since it uses less digits than its factorization.

55727242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592892.

The product of its digits is 39200, while the sum is 34.

The square root of 55727242 is about 7465.0681175727. The cubic root of 55727242 is about 381.9640738122.

Adding to 55727242 its reverse (24272755), we get a palindrome (79999997).

The spelling of 55727242 in words is "fifty-five million, seven hundred twenty-seven thousand, two hundred forty-two".