55545033 has 4 divisors (see below), whose sum is σ = 74060048. Its totient is φ = 37030020.

The previous prime is 55545031. The next prime is 55545067. The reversal of 55545033 is 33054555.

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 not a de Polignac number, because 55545033 - 2¹ = 55545031 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55545031) 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, 9257503 + ... + 9257508.

It is an arithmetic number, because the mean of its divisors is an integer number (18515012).

Almost surely, 2^55545033 is an apocalyptic number.

It is an amenable number.

55545033 is a deficient number, since it is larger than the sum of its proper divisors (18515015).

55545033 is a wasteful number, since it uses less digits than its factorization.

55545033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18515014.

The product of its (nonzero) digits is 22500, while the sum is 30.

The square root of 55545033 is about 7452.8540170863. The cubic root of 55545033 is about 381.5473220249.

Adding to 55545033 its reverse (33054555), we get a palindrome (88599588).

The spelling of 55545033 in words is "fifty-five million, five hundred forty-five thousand, thirty-three".