64455 has 8 divisors (see below), whose sum is σ = 103152. Its totient is φ = 34368.

The previous prime is 64453. The next prime is 64483. The reversal of 64455 is 55446.

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

It is not a de Polignac number, because 64455 - 2¹ = 64453 is a prime.

64455 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2134 + ... + 2163.

It is an arithmetic number, because the mean of its divisors is an integer number (12894).

2⁶⁴⁴⁵⁵ is an apocalyptic number.

64455 is a deficient number, since it is larger than the sum of its proper divisors (38697).

64455 is a wasteful number, since it uses less digits than its factorization.

64455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4305.

The product of its digits is 2400, while the sum is 24.

The square root of 64455 is about 253.8798928627. The cubic root of 64455 is about 40.0945679132.

Subtracting from 64455 its reverse (55446), we obtain a palindrome (9009).

The spelling of 64455 in words is "sixty-four thousand, four hundred fifty-five".