55200438 has 12 divisors (see below), whose sum is σ = 119600988. Its totient is φ = 18400140.

The previous prime is 55200407. The next prime is 55200443. The reversal of 55200438 is 83400255.

55200438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1533328 + ... + 1533363.

It is an arithmetic number, because the mean of its divisors is an integer number (9966749).

Almost surely, 2^55200438 is an apocalyptic number.

55200438 is an abundant number, since it is smaller than the sum of its proper divisors (64400550).

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

55200438 is a wasteful number, since it uses less digits than its factorization.

55200438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3066699 (or 3066696 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 55200438 is about 7429.6997247533. The cubic root of 55200438 is about 380.7566594611.

The spelling of 55200438 in words is "fifty-five million, two hundred thousand, four hundred thirty-eight".