55123344 has 30 divisors (see below), whose sum is σ = 154269206. Its totient is φ = 18374400.

The previous prime is 55123331. The next prime is 55123349. The reversal of 55123344 is 44332155.

It can be written as a sum of positive squares in only one way, i.e., 51840000 + 3283344 = 7200^2 + 1812^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55123349) 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 5 ways as a sum of consecutive naturals, for example, 191257 + ... + 191544.

Almost surely, 2^55123344 is an apocalyptic number.

It is an amenable number.

55123344 is an abundant number, since it is smaller than the sum of its proper divisors (99145862).

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

55123344 is a wasteful number, since it uses less digits than its factorization.

55123344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382815 (or 382806 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 55123344 is about 7424.5096807803. The cubic root of 55123344 is about 380.5793195035.

Adding to 55123344 its reverse (44332155), we get a palindrome (99455499).

The spelling of 55123344 in words is "fifty-five million, one hundred twenty-three thousand, three hundred forty-four".