55356242 has 6 divisors (see below), whose sum is σ = 83050149. Its totient is φ = 27672860.

The previous prime is 55356229. The next prime is 55356247. The reversal of 55356242 is 24265355.

55356242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 51825601 + 3530641 = 7199^2 + 1879^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=5261.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55356199 and 55356208.

It is not an unprimeable number, because it can be changed into a prime (55356247) 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 in 2 ways as a sum of consecutive naturals, for example, 7892 + ... + 13152.

Almost surely, 2^55356242 is an apocalyptic number.

55356242 is a deficient number, since it is larger than the sum of its proper divisors (27693907).

55356242 is an frugal number, since it uses more digits than its factorization.

55356242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10524 (or 5263 counting only the distinct ones).

The product of its digits is 36000, while the sum is 32.

The square root of 55356242 is about 7440.1775516449. The cubic root of 55356242 is about 381.1145532651.

Multiplying 55356242 by its sum of digits (32), we get a square (1771399744 = 42088²).

The spelling of 55356242 in words is "fifty-five million, three hundred fifty-six thousand, two hundred forty-two".