55663122 has 64 divisors (see below), whose sum is σ = 123120000. Its totient is φ = 16708608.

The previous prime is 55663121. The next prime is 55663147. The reversal of 55663122 is 22136655.

It is a self number, because there is not a number n which added to its sum of digits gives 55663122.

It is not an unprimeable number, because it can be changed into a prime (55663121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 373504 + ... + 373652.

It is an arithmetic number, because the mean of its divisors is an integer number (1923750).

Almost surely, 2^55663122 is an apocalyptic number.

55663122 is an abundant number, since it is smaller than the sum of its proper divisors (67456878).

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

55663122 is a wasteful number, since it uses less digits than its factorization.

55663122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315.

The product of its digits is 10800, while the sum is 30.

The square root of 55663122 is about 7460.7722120435. The cubic root of 55663122 is about 381.8175210976.

Adding to 55663122 its reverse (22136655), we get a palindrome (77799777).

The spelling of 55663122 in words is "fifty-five million, six hundred sixty-three thousand, one hundred twenty-two".