64955895 has 16 divisors (see below), whose sum is σ = 110043360. Its totient is φ = 32605184.

The previous prime is 64955893. The next prime is 64955921. The reversal of 64955895 is 59855946.

It is not a de Polignac number, because 64955895 - 2¹ = 64955893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64955893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127110 + ... + 127619.

It is an arithmetic number, because the mean of its divisors is an integer number (6877710).

Almost surely, 2^64955895 is an apocalyptic number.

64955895 is a deficient number, since it is larger than the sum of its proper divisors (45087465).

64955895 is a wasteful number, since it uses less digits than its factorization.

64955895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254754.

The product of its digits is 1944000, while the sum is 51.

The square root of 64955895 is about 8059.5220081590. The cubic root of 64955895 is about 401.9816147132.

Adding to 64955895 its sum of digits (51), we get a palindrome (64955946).

The spelling of 64955895 in words is "sixty-four million, nine hundred fifty-five thousand, eight hundred ninety-five".