55122824 has 8 divisors (see below), whose sum is σ = 103355310. Its totient is φ = 27561408.

The previous prime is 55122787. The next prime is 55122827. The reversal of 55122824 is 42822155.

It can be written as a sum of positive squares in only one way, i.e., 55026724 + 96100 = 7418^2 + 310^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (55122827) 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 as a sum of consecutive naturals, namely, 3445169 + ... + 3445184.

Almost surely, 2^55122824 is an apocalyptic number.

It is an amenable number.

55122824 is a deficient number, since it is larger than the sum of its proper divisors (48232486).

55122824 is a wasteful number, since it uses less digits than its factorization.

55122824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6890359 (or 6890355 counting only the distinct ones).

The product of its digits is 6400, while the sum is 29.

The square root of 55122824 is about 7424.4746615501. The cubic root of 55122824 is about 380.5781227821.

Adding to 55122824 its reverse (42822155), we get a palindrome (97944979).

The spelling of 55122824 in words is "fifty-five million, one hundred twenty-two thousand, eight hundred twenty-four".