28553633 has 2 divisors, whose sum is σ = 28553634. Its totient is φ = 28553632.

The previous prime is 28553627. The next prime is 28553639. The reversal of 28553633 is 33635582.

It is a balanced prime because it is at equal distance from previous prime (28553627) and next prime (28553639).

It can be written as a sum of positive squares in only one way, i.e., 14922769 + 13630864 = 3863^2 + 3692^2 .

It is a cyclic number.

It is not a de Polignac number, because 28553633 - 2⁴ = 28553617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28553593 and 28553602.

It is not a weakly prime, because it can be changed into another prime (28553639) 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, 14276816 + 14276817.

It is an arithmetic number, because the mean of its divisors is an integer number (14276817).

Almost surely, 2^28553633 is an apocalyptic number.

It is an amenable number.

28553633 is a deficient number, since it is larger than the sum of its proper divisors (1).

28553633 is an equidigital number, since it uses as much as digits as its factorization.

28553633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 35.

The square root of 28553633 is about 5343.5599556850. The cubic root of 28553633 is about 305.6472254222.

The spelling of 28553633 in words is "twenty-eight million, five hundred fifty-three thousand, six hundred thirty-three".