55245242 has 16 divisors (see below), whose sum is σ = 90502272. Its totient is φ = 25137840.

The previous prime is 55245227. The next prime is 55245263. The reversal of 55245242 is 24254255.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13118 + ... + 16809.

It is an arithmetic number, because the mean of its divisors is an integer number (5656392).

Almost surely, 2^55245242 is an apocalyptic number.

55245242 is a deficient number, since it is larger than the sum of its proper divisors (35257030).

55245242 is a wasteful number, since it uses less digits than its factorization.

55245242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30013.

The product of its digits is 16000, while the sum is 29.

The square root of 55245242 is about 7432.7143090529. The cubic root of 55245242 is about 380.8596466147.

Adding to 55245242 its reverse (24254255), we get a palindrome (79499497).

The spelling of 55245242 in words is "fifty-five million, two hundred forty-five thousand, two hundred forty-two".