53083989 has 24 divisors (see below), whose sum is σ = 87821760. Its totient is φ = 30267648.

The previous prime is 53083963. The next prime is 53083999. The reversal of 53083989 is 98938035.

53083989 is a `hidden beast` number, since 530 + 8 + 39 + 89 = 666.

It is not a de Polignac number, because 53083989 - 2⁵ = 53083957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53083909) by changing a digit.

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

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56677 + ... + 57605.

It is an arithmetic number, because the mean of its divisors is an integer number (3659240).

Almost surely, 2^53083989 is an apocalyptic number.

It is an amenable number.

53083989 is a deficient number, since it is larger than the sum of its proper divisors (34737771).

53083989 is a wasteful number, since it uses less digits than its factorization.

53083989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849 (or 1846 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 53083989 is about 7285.8759940037. The cubic root of 53083989 is about 375.8268900010.

The spelling of 53083989 in words is "fifty-three million, eighty-three thousand, nine hundred eighty-nine".