53933489 has 4 divisors (see below), whose sum is σ = 54951156. Its totient is φ = 52915824.

The previous prime is 53933443. The next prime is 53933497. The reversal of 53933489 is 98433935.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44782864 + 9150625 = 6692^2 + 3025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53933489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53930489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508754 + ... + 508859.

It is an arithmetic number, because the mean of its divisors is an integer number (13737789).

Almost surely, 2^53933489 is an apocalyptic number.

It is an amenable number.

53933489 is a deficient number, since it is larger than the sum of its proper divisors (1017667).

53933489 is a wasteful number, since it uses less digits than its factorization.

53933489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017666.

The product of its digits is 349920, while the sum is 44.

The square root of 53933489 is about 7343.9423336516. The cubic root of 53933489 is about 377.8210686036.

The spelling of 53933489 in words is "fifty-three million, nine hundred thirty-three thousand, four hundred eighty-nine".