65455 has 16 divisors (see below), whose sum is σ = 90720. Its totient is φ = 44928.

The previous prime is 65449. The next prime is 65479. The reversal of 65455 is 55456.

It is not a de Polignac number, because 65455 - 2³ = 65447 is a prime.

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1209 + ... + 1261.

It is an arithmetic number, because the mean of its divisors is an integer number (5670).

2⁶⁵⁴⁵⁵ is an apocalyptic number.

65455 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

65455 is a deficient number, since it is larger than the sum of its proper divisors (25265).

65455 is a wasteful number, since it uses less digits than its factorization.

65455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90.

The product of its digits is 3000, while the sum is 25.

The square root of 65455 is about 255.8417479615. The cubic root of 65455 is about 40.3008564614.

Subtracting from 65455 its reverse (55456), we obtain a palindrome (9999).

The spelling of 65455 in words is "sixty-five thousand, four hundred fifty-five".