55233733 has 2 divisors, whose sum is σ = 55233734. Its totient is φ = 55233732.

The previous prime is 55233727. The next prime is 55233751. The reversal of 55233733 is 33733255.

It is a happy number.

55233733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54420129 + 813604 = 7377^2 + 902^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55233733 is a prime.

It is a super-2 number, since 2×55233733² = 6101530522230578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55233695 and 55233704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55233533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27616866 + 27616867.

It is an arithmetic number, because the mean of its divisors is an integer number (27616867).

Almost surely, 2^55233733 is an apocalyptic number.

It is an amenable number.

55233733 is a deficient number, since it is larger than the sum of its proper divisors (1).

55233733 is an equidigital number, since it uses as much as digits as its factorization.

55233733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28350, while the sum is 31.

The square root of 55233733 is about 7431.9400562706. The cubic root of 55233733 is about 380.8331971690.

Adding to 55233733 its reverse (33733255), we get a palindrome (88966988).

The spelling of 55233733 in words is "fifty-five million, two hundred thirty-three thousand, seven hundred thirty-three".