55233433 has 4 divisors (see below), whose sum is σ = 55248768. Its totient is φ = 55218100.

The previous prime is 55233427. The next prime is 55233469. The reversal of 55233433 is 33433255.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 55233433 - 2²⁵ = 21679001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55233533) 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, 1008 + ... + 10558.

It is an arithmetic number, because the mean of its divisors is an integer number (13812192).

Almost surely, 2^55233433 is an apocalyptic number.

It is an amenable number.

55233433 is a deficient number, since it is larger than the sum of its proper divisors (15335).

55233433 is an equidigital number, since it uses as much as digits as its factorization.

55233433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15334.

The product of its digits is 16200, while the sum is 28.

The square root of 55233433 is about 7431.9198730880. The cubic root of 55233433 is about 380.8325076739.

Adding to 55233433 its reverse (33433255), we get a palindrome (88666688).

The spelling of 55233433 in words is "fifty-five million, two hundred thirty-three thousand, four hundred thirty-three".