55545133 has 8 divisors (see below), whose sum is σ = 63581760. Its totient is φ = 47533920.

The previous prime is 55545109. The next prime is 55545157. The reversal of 55545133 is 33154555.

It is an interprime number because it is at equal distance from previous prime (55545109) and next prime (55545157).

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

It is not a de Polignac number, because 55545133 - 2²⁵ = 21990701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55545095 and 55545104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55545163) 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, 1408 + ... + 10633.

It is an arithmetic number, because the mean of its divisors is an integer number (7947720).

Almost surely, 2^55545133 is an apocalyptic number.

It is an amenable number.

55545133 is a deficient number, since it is larger than the sum of its proper divisors (8036627).

55545133 is a wasteful number, since it uses less digits than its factorization.

55545133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12707.

The product of its digits is 22500, while the sum is 31.

The square root of 55545133 is about 7452.8607259226. The cubic root of 55545133 is about 381.5475509965.

Adding to 55545133 its reverse (33154555), we get a palindrome (88699688).

The spelling of 55545133 in words is "fifty-five million, five hundred forty-five thousand, one hundred thirty-three".