55505333 has 8 divisors (see below), whose sum is σ = 61836600. Its totient is φ = 49468608.

The previous prime is 55505299. The next prime is 55505353. The reversal of 55505333 is 33350555.

It can be written as a sum of positive squares in 4 ways, for example, as 7091569 + 48413764 = 2663^2 + 6958^2 .

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 55505333 - 2²⁰ = 54456757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55505296 and 55505305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55505353) 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, 73238 + ... + 73991.

It is an arithmetic number, because the mean of its divisors is an integer number (7729575).

Almost surely, 2^55505333 is an apocalyptic number.

It is an amenable number.

55505333 is a deficient number, since it is larger than the sum of its proper divisors (6331267).

55505333 is a wasteful number, since it uses less digits than its factorization.

55505333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147271.

The product of its (nonzero) digits is 16875, while the sum is 29.

The square root of 55505333 is about 7450.1901318020. The cubic root of 55505333 is about 381.4563985699.

Adding to 55505333 its reverse (33350555), we get a palindrome (88855888).

The spelling of 55505333 in words is "fifty-five million, five hundred five thousand, three hundred thirty-three".