55188033 has 4 divisors (see below), whose sum is σ = 73584048. Its totient is φ = 36792020.

The previous prime is 55188031. The next prime is 55188037. The reversal of 55188033 is 33088155.

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 55188033 - 2¹ = 55188031 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55187985 and 55188003.

It is not an unprimeable number, because it can be changed into a prime (55188031) 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, 9198003 + ... + 9198008.

It is an arithmetic number, because the mean of its divisors is an integer number (18396012).

Almost surely, 2^55188033 is an apocalyptic number.

It is an amenable number.

55188033 is a deficient number, since it is larger than the sum of its proper divisors (18396015).

55188033 is a wasteful number, since it uses less digits than its factorization.

55188033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18396014.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 55188033 is about 7428.8648527214. The cubic root of 55188033 is about 380.7281352900.

The spelling of 55188033 in words is "fifty-five million, one hundred eighty-eight thousand, thirty-three".