53257489 has 8 divisors (see below), whose sum is σ = 56115072. Its totient is φ = 50445120.

The previous prime is 53257441. The next prime is 53257499. The reversal of 53257489 is 98475235.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53257489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53257499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8872 + ... + 13609.

It is an arithmetic number, because the mean of its divisors is an integer number (7014384).

Almost surely, 2^53257489 is an apocalyptic number.

It is an amenable number.

53257489 is a deficient number, since it is larger than the sum of its proper divisors (2857583).

53257489 is a wasteful number, since it uses less digits than its factorization.

53257489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22607.

The product of its digits is 302400, while the sum is 43.

The square root of 53257489 is about 7297.7728794475. The cubic root of 53257489 is about 376.2358962789.

The spelling of 53257489 in words is "fifty-three million, two hundred fifty-seven thousand, four hundred eighty-nine".