53457 has 8 divisors (see below), whose sum is σ = 72384. Its totient is φ = 35088.

The previous prime is 53453. The next prime is 53479. The reversal of 53457 is 75435.

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

It is not a de Polignac number, because 53457 - 2² = 53453 is a prime.

53457 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (53453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223 + ... + 395.

It is an arithmetic number, because the mean of its divisors is an integer number (9048).

2⁵³⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

53457 is a deficient number, since it is larger than the sum of its proper divisors (18927).

53457 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (53456) it forms an eRAP, since the sums of their prime factors are consecutive (278 and 279).

53457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279.

The product of its digits is 2100, while the sum is 24.

The square root of 53457 is about 231.2076988338. The cubic root of 53457 is about 37.6705123944.

The spelling of 53457 in words is "fifty-three thousand, four hundred fifty-seven".