55044433 has 2 divisors, whose sum is σ = 55044434. Its totient is φ = 55044432.

The previous prime is 55044413. The next prime is 55044461. The reversal of 55044433 is 33444055.

It is an a-pointer prime, because the next prime (55044461) can be obtained adding 55044433 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38340864 + 16703569 = 6192^2 + 4087^2 .

It is a cyclic number.

It is not a de Polignac number, because 55044433 - 2⁵ = 55044401 is a prime.

It is not a weakly prime, because it can be changed into another prime (55044403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27522216 + 27522217.

It is an arithmetic number, because the mean of its divisors is an integer number (27522217).

Almost surely, 2^55044433 is an apocalyptic number.

It is an amenable number.

55044433 is a deficient number, since it is larger than the sum of its proper divisors (1).

55044433 is an equidigital number, since it uses as much as digits as its factorization.

55044433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 55044433 is about 7419.1935545583. The cubic root of 55044433 is about 380.3976285630.

Adding to 55044433 its reverse (33444055), we get a palindrome (88488488).

The spelling of 55044433 in words is "fifty-five million, forty-four thousand, four hundred thirty-three".