55133203 has 8 divisors (see below), whose sum is σ = 56167040. Its totient is φ = 54103680.

The previous prime is 55133201. The next prime is 55133251. The reversal of 55133203 is 30233155.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55133203 - 2¹ = 55133201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55133201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36283 + ... + 37771.

It is an arithmetic number, because the mean of its divisors is an integer number (7020880).

Almost surely, 2^55133203 is an apocalyptic number.

55133203 is a deficient number, since it is larger than the sum of its proper divisors (1033837).

55133203 is a wasteful number, since it uses less digits than its factorization.

55133203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 55133203 is about 7425.1736006642. The cubic root of 55133203 is about 380.6020074585.

Adding to 55133203 its reverse (30233155), we get a palindrome (85366358).

The spelling of 55133203 in words is "fifty-five million, one hundred thirty-three thousand, two hundred three".