55203944 has 16 divisors (see below), whose sum is σ = 105710400. Its totient is φ = 27014512.

The previous prime is 55203943. The next prime is 55203971. The reversal of 55203944 is 44930255.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 55203944.

It is not an unprimeable number, because it can be changed into a prime (55203943) 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, 73034 + ... + 73785.

It is an arithmetic number, because the mean of its divisors is an integer number (6606900).

Almost surely, 2^55203944 is an apocalyptic number.

It is an amenable number.

55203944 is a deficient number, since it is larger than the sum of its proper divisors (50506456).

55203944 is a wasteful number, since it uses less digits than its factorization.

55203944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146872 (or 146868 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 55203944 is about 7429.9356659395. The cubic root of 55203944 is about 380.7647204152.

The spelling of 55203944 in words is "fifty-five million, two hundred three thousand, nine hundred forty-four".