55305933 has 8 divisors (see below), whose sum is σ = 73816896. Its totient is φ = 36832800.

The previous prime is 55305931. The next prime is 55305949. The reversal of 55305933 is 33950355.

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

It is not a de Polignac number, because 55305933 - 2¹ = 55305931 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 55305894 and 55305903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55305931) 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, 5848 + ... + 12033.

It is an arithmetic number, because the mean of its divisors is an integer number (9227112).

Almost surely, 2^55305933 is an apocalyptic number.

It is an amenable number.

55305933 is a deficient number, since it is larger than the sum of its proper divisors (18510963).

55305933 is a wasteful number, since it uses less digits than its factorization.

55305933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18915.

The product of its (nonzero) digits is 30375, while the sum is 33.

The square root of 55305933 is about 7436.7958826366. The cubic root of 55305933 is about 380.9990631069. Note that the first 3 decimals are identical.

The spelling of 55305933 in words is "fifty-five million, three hundred five thousand, nine hundred thirty-three".