53212889 has 2 divisors, whose sum is σ = 53212890. Its totient is φ = 53212888.

The previous prime is 53212879. The next prime is 53212891. The reversal of 53212889 is 98821235.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40857664 + 12355225 = 6392^2 + 3515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53212889 is a prime.

It is a super-2 number, since 2×53212889² = 5663223111452642, which contains 22 as substring.

Together with 53212891, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53212849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26606444 + 26606445.

It is an arithmetic number, because the mean of its divisors is an integer number (26606445).

Almost surely, 2^53212889 is an apocalyptic number.

It is an amenable number.

53212889 is a deficient number, since it is larger than the sum of its proper divisors (1).

53212889 is an equidigital number, since it uses as much as digits as its factorization.

53212889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 38.

The square root of 53212889 is about 7294.7165126549. The cubic root of 53212889 is about 376.1308418375.

The spelling of 53212889 in words is "fifty-three million, two hundred twelve thousand, eight hundred eighty-nine".