52581589 has 2 divisors, whose sum is σ = 52581590. Its totient is φ = 52581588.

The previous prime is 52581587. The next prime is 52581593. The reversal of 52581589 is 98518525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43996689 + 8584900 = 6633^2 + 2930^2 .

It is a cyclic number.

It is not a de Polignac number, because 52581589 - 2¹ = 52581587 is a prime.

Together with 52581587, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52581583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26290794 + 26290795.

It is an arithmetic number, because the mean of its divisors is an integer number (26290795).

Almost surely, 2^52581589 is an apocalyptic number.

It is an amenable number.

52581589 is a deficient number, since it is larger than the sum of its proper divisors (1).

52581589 is an equidigital number, since it uses as much as digits as its factorization.

52581589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144000, while the sum is 43.

The square root of 52581589 is about 7251.3163632543. The cubic root of 52581589 is about 374.6374902700.

The spelling of 52581589 in words is "fifty-two million, five hundred eighty-one thousand, five hundred eighty-nine".