53445589 has 2 divisors, whose sum is σ = 53445590. Its totient is φ = 53445588.

The previous prime is 53445547. The next prime is 53445593. The reversal of 53445589 is 98554435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49210225 + 4235364 = 7015^2 + 2058^2 .

It is a cyclic number.

It is not a de Polignac number, because 53445589 - 2¹⁷ = 53314517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53445389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26722794 + 26722795.

It is an arithmetic number, because the mean of its divisors is an integer number (26722795).

Almost surely, 2^53445589 is an apocalyptic number.

It is an amenable number.

53445589 is a deficient number, since it is larger than the sum of its proper divisors (1).

53445589 is an equidigital number, since it uses as much as digits as its factorization.

53445589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432000, while the sum is 43.

The square root of 53445589 is about 7310.6490135965. The cubic root of 53445589 is about 376.6783180496.

The spelling of 53445589 in words is "fifty-three million, four hundred forty-five thousand, five hundred eighty-nine".