55253242 has 16 divisors (see below), whose sum is σ = 92122272. Its totient is φ = 24640720.

The previous prime is 55253227. The next prime is 55253243. The reversal of 55253242 is 24235255.

It is a self number, because there is not a number n which added to its sum of digits gives 55253242.

It is not an unprimeable number, because it can be changed into a prime (55253243) 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, 22528 + ... + 24859.

It is an arithmetic number, because the mean of its divisors is an integer number (5757642).

Almost surely, 2^55253242 is an apocalyptic number.

55253242 is a deficient number, since it is larger than the sum of its proper divisors (36869030).

55253242 is a wasteful number, since it uses less digits than its factorization.

55253242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47453.

The product of its digits is 12000, while the sum is 28.

The square root of 55253242 is about 7433.2524509800. The cubic root of 55253242 is about 380.8780296767.

Adding to 55253242 its reverse (24235255), we get a palindrome (79488497).

The spelling of 55253242 in words is "fifty-five million, two hundred fifty-three thousand, two hundred forty-two".