55542944 has 24 divisors (see below), whose sum is σ = 115783668. Its totient is φ = 26137600.

The previous prime is 55542943. The next prime is 55542959. The reversal of 55542944 is 44924555.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 54582544 + 960400 = 7388^2 + 980^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55542898 and 55542907.

It is not an unprimeable number, because it can be changed into a prime (55542941) 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 3 ways as a sum of consecutive naturals, for example, 50507 + ... + 51594.

Almost surely, 2^55542944 is an apocalyptic number.

It is an amenable number.

55542944 is an abundant number, since it is smaller than the sum of its proper divisors (60240724).

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

55542944 is a wasteful number, since it uses less digits than its factorization.

55542944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102128 (or 102120 counting only the distinct ones).

The product of its digits is 144000, while the sum is 38.

The square root of 55542944 is about 7452.7138681154. The cubic root of 55542944 is about 381.5425387448.

The spelling of 55542944 in words is "fifty-five million, five hundred forty-two thousand, nine hundred forty-four".