531650089 has 2 divisors, whose sum is σ = 531650090. Its totient is φ = 531650088.

The previous prime is 531650087. The next prime is 531650099. The reversal of 531650089 is 980056135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 275394025 + 256256064 = 16595^2 + 16008^2 .

It is a cyclic number.

It is not a de Polignac number, because 531650089 - 2¹ = 531650087 is a prime.

Together with 531650087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (531650087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265825044 + 265825045.

It is an arithmetic number, because the mean of its divisors is an integer number (265825045).

Almost surely, 2^531650089 is an apocalyptic number.

It is an amenable number.

531650089 is a deficient number, since it is larger than the sum of its proper divisors (1).

531650089 is an equidigital number, since it uses as much as digits as its factorization.

531650089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 531650089 is about 23057.5386587554. The cubic root of 531650089 is about 810.1062142889.

The spelling of 531650089 in words is "five hundred thirty-one million, six hundred fifty thousand, eighty-nine".