64456255 has 4 divisors (see below), whose sum is σ = 77347512. Its totient is φ = 51565000.

The previous prime is 64456253. The next prime is 64456283. The reversal of 64456255 is 55265446.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 64456255 - 2¹ = 64456253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64456253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6445621 + ... + 6445630.

It is an arithmetic number, because the mean of its divisors is an integer number (19336878).

Almost surely, 2^64456255 is an apocalyptic number.

64456255 is a deficient number, since it is larger than the sum of its proper divisors (12891257).

64456255 is a wasteful number, since it uses less digits than its factorization.

64456255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12891256.

The product of its digits is 144000, while the sum is 37.

The square root of 64456255 is about 8028.4652954347. The cubic root of 64456255 is about 400.9482813795.

The spelling of 64456255 in words is "sixty-four million, four hundred fifty-six thousand, two hundred fifty-five".