53556889 has 2 divisors, whose sum is σ = 53556890. Its totient is φ = 53556888.

The previous prime is 53556883. The next prime is 53556911. The reversal of 53556889 is 98865535.

It is a happy number.

53556889 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., 46131264 + 7425625 = 6792^2 + 2725^2 .

It is a cyclic number.

It is not a de Polignac number, because 53556889 - 2⁷ = 53556761 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53556883) 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, 26778444 + 26778445.

It is an arithmetic number, because the mean of its divisors is an integer number (26778445).

Almost surely, 2^53556889 is an apocalyptic number.

It is an amenable number.

53556889 is a deficient number, since it is larger than the sum of its proper divisors (1).

53556889 is an equidigital number, since it uses as much as digits as its factorization.

53556889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296000, while the sum is 49.

The square root of 53556889 is about 7318.2572378948. The cubic root of 53556889 is about 376.9396132527.

It can be divided in two parts, 53556 and 889, that added together give a palindrome (54445).

The spelling of 53556889 in words is "fifty-three million, five hundred fifty-six thousand, eight hundred eighty-nine".