53978589 has 32 divisors (see below), whose sum is σ = 92448000. Its totient is φ = 30488832.

The previous prime is 53978581. The next prime is 53978627. The reversal of 53978589 is 98587935.

53978589 is a `hidden beast` number, since 53 + 9 + 7 + 8 + 589 = 666.

It is not a de Polignac number, because 53978589 - 2³ = 53978581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53978581) 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 31 ways as a sum of consecutive naturals, for example, 15217 + ... + 18425.

It is an arithmetic number, because the mean of its divisors is an integer number (2889000).

Almost surely, 2^53978589 is an apocalyptic number.

It is an amenable number.

53978589 is a deficient number, since it is larger than the sum of its proper divisors (38469411).

53978589 is a wasteful number, since it uses less digits than its factorization.

53978589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3314 (or 3308 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 54.

The square root of 53978589 is about 7347.0122498877. The cubic root of 53978589 is about 377.9263524949.

The spelling of 53978589 in words is "fifty-three million, nine hundred seventy-eight thousand, five hundred eighty-nine".