55322442 has 48 divisors (see below), whose sum is σ = 137404800. Its totient is φ = 15758496.

The previous prime is 55322441. The next prime is 55322453. The reversal of 55322442 is 24422355.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55322441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75108 + ... + 75840.

It is an arithmetic number, because the mean of its divisors is an integer number (2862600).

Almost surely, 2^55322442 is an apocalyptic number.

55322442 is an abundant number, since it is smaller than the sum of its proper divisors (82082358).

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

55322442 is a wasteful number, since it uses less digits than its factorization.

55322442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347 (or 1344 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 55322442 is about 7437.9057536379. The cubic root of 55322442 is about 381.0369691533.

Adding to 55322442 its reverse (24422355), we get a palindrome (79744797).

The spelling of 55322442 in words is "fifty-five million, three hundred twenty-two thousand, four hundred forty-two".