55536222 has 32 divisors (see below), whose sum is σ = 130040064. Its totient is φ = 15480000.

The previous prime is 55536197. The next prime is 55536227. The reversal of 55536222 is 22263555.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 55536222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55536227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14404 + ... + 17847.

It is an arithmetic number, because the mean of its divisors is an integer number (4063752).

Almost surely, 2^55536222 is an apocalyptic number.

55536222 is an abundant number, since it is smaller than the sum of its proper divisors (74503842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55536222 is a wasteful number, since it uses less digits than its factorization.

55536222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32304.

The product of its digits is 18000, while the sum is 30.

The square root of 55536222 is about 7452.2628778110. The cubic root of 55536222 is about 381.5271462561.

Adding to 55536222 its reverse (22263555), we get a palindrome (77799777).

The spelling of 55536222 in words is "fifty-five million, five hundred thirty-six thousand, two hundred twenty-two".