55443233 has 2 divisors, whose sum is σ = 55443234. Its totient is φ = 55443232.

The previous prime is 55443217. The next prime is 55443251. The reversal of 55443233 is 33234455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31550689 + 23892544 = 5617^2 + 4888^2 .

It is a cyclic number.

It is not a de Polignac number, because 55443233 - 2⁴ = 55443217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55443196 and 55443205.

It is not a weakly prime, because it can be changed into another prime (55443263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27721616 + 27721617.

It is an arithmetic number, because the mean of its divisors is an integer number (27721617).

Almost surely, 2^55443233 is an apocalyptic number.

It is an amenable number.

55443233 is a deficient number, since it is larger than the sum of its proper divisors (1).

55443233 is an equidigital number, since it uses as much as digits as its factorization.

55443233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 29.

The square root of 55443233 is about 7446.0212865664. The cubic root of 55443233 is about 381.3140862258.

Adding to 55443233 its reverse (33234455), we get a palindrome (88677688).

The spelling of 55443233 in words is "fifty-five million, four hundred forty-three thousand, two hundred thirty-three".