55353222 has 12 divisors (see below), whose sum is σ = 119932020. Its totient is φ = 18451068.

The previous prime is 55353209. The next prime is 55353223. The reversal of 55353222 is 22235355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55353223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1537572 + ... + 1537607.

It is an arithmetic number, because the mean of its divisors is an integer number (9994335).

Almost surely, 2^55353222 is an apocalyptic number.

55353222 is an abundant number, since it is smaller than the sum of its proper divisors (64578798).

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

55353222 is a wasteful number, since it uses less digits than its factorization.

55353222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3075187 (or 3075184 counting only the distinct ones).

The product of its digits is 9000, while the sum is 27.

The square root of 55353222 is about 7439.9745967308. The cubic root of 55353222 is about 381.1076224786.

Adding to 55353222 its reverse (22235355), we get a palindrome (77588577).

The spelling of 55353222 in words is "fifty-five million, three hundred fifty-three thousand, two hundred twenty-two".