53217589 has 2 divisors, whose sum is σ = 53217590. Its totient is φ = 53217588.

The previous prime is 53217551. The next prime is 53217601. The reversal of 53217589 is 98571235.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48302500 + 4915089 = 6950^2 + 2217^2 .

It is a cyclic number.

It is not a de Polignac number, because 53217589 - 2¹³ = 53209397 is a prime.

It is a super-2 number, since 2×53217589² = 5664223557945842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53217509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26608794 + 26608795.

It is an arithmetic number, because the mean of its divisors is an integer number (26608795).

Almost surely, 2^53217589 is an apocalyptic number.

It is an amenable number.

53217589 is a deficient number, since it is larger than the sum of its proper divisors (1).

53217589 is an equidigital number, since it uses as much as digits as its factorization.

53217589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 40.

The square root of 53217589 is about 7295.0386565117. The cubic root of 53217589 is about 376.1419153634.

The spelling of 53217589 in words is "fifty-three million, two hundred seventeen thousand, five hundred eighty-nine".