65457 has 12 divisors (see below), whose sum is σ = 108160. Its totient is φ = 37368.

The previous prime is 65449. The next prime is 65479. The reversal of 65457 is 75456.

65457 is a `hidden beast` number, since 654 + 5 + 7 = 666.

It is not a de Polignac number, because 65457 - 2³ = 65449 is a prime.

It is a Duffinian number.

65457 is a lucky number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 65457.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 65457.

It is not an unprimeable number, because it can be changed into a prime (65407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 457 + ... + 582.

2⁶⁵⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

65457 is a deficient number, since it is larger than the sum of its proper divisors (42703).

65457 is a wasteful number, since it uses less digits than its factorization.

65457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052 (or 1049 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 65457 is about 255.8456565979. The cubic root of 65457 is about 40.3012669261.

Subtracting 65457 from its reverse (75456), we obtain a palindrome (9999).

The spelling of 65457 in words is "sixty-five thousand, four hundred fifty-seven".