55302133 has 4 divisors (see below), whose sum is σ = 56002240. Its totient is φ = 54602028.

The previous prime is 55302119. The next prime is 55302167. The reversal of 55302133 is 33120355.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55302133 - 2⁹ = 55301621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55302433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349935 + ... + 350092.

It is an arithmetic number, because the mean of its divisors is an integer number (14000560).

Almost surely, 2^55302133 is an apocalyptic number.

It is an amenable number.

55302133 is a deficient number, since it is larger than the sum of its proper divisors (700107).

55302133 is an equidigital number, since it uses as much as digits as its factorization.

55302133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700106.

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

The square root of 55302133 is about 7436.5403918758. The cubic root of 55302133 is about 380.9903369208.

Adding to 55302133 its reverse (33120355), we get a palindrome (88422488).

The spelling of 55302133 in words is "fifty-five million, three hundred two thousand, one hundred thirty-three".