55252042 has 4 divisors (see below), whose sum is σ = 82878066. Its totient is φ = 27626020.

The previous prime is 55252039. The next prime is 55252069. The reversal of 55252042 is 24025255.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 55190041 + 62001 = 7429^2 + 249^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55251998 and 55252016.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13813009 + ... + 13813012.

Almost surely, 2^55252042 is an apocalyptic number.

55252042 is a deficient number, since it is larger than the sum of its proper divisors (27626024).

55252042 is a wasteful number, since it uses less digits than its factorization.

55252042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27626023.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 55252042 is about 7433.1717321746. The cubic root of 55252042 is about 380.8752723305.

Adding to 55252042 its reverse (24025255), we get a palindrome (79277297).

The spelling of 55252042 in words is "fifty-five million, two hundred fifty-two thousand, forty-two".