55230722 has 16 divisors (see below), whose sum is σ = 87871392. Its totient is φ = 25945920.

The previous prime is 55230709. The next prime is 55230821. The reversal of 55230722 is 22703255.

It is a junction number, because it is equal to n+sod(n) for n = 55230691 and 55230700.

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, 26573 + ... + 28575.

It is an arithmetic number, because the mean of its divisors is an integer number (5491962).

Almost surely, 2^55230722 is an apocalyptic number.

55230722 is a deficient number, since it is larger than the sum of its proper divisors (32640670).

55230722 is a wasteful number, since it uses less digits than its factorization.

55230722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2833.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 55230722 is about 7431.7374819083. The cubic root of 55230722 is about 380.8262768232.

Adding to 55230722 its reverse (22703255), we get a palindrome (77933977).

The spelling of 55230722 in words is "fifty-five million, two hundred thirty thousand, seven hundred twenty-two".