64955481 has 8 divisors (see below), whose sum is σ = 86693184. Its totient is φ = 43260720.

The previous prime is 64955467. The next prime is 64955489. The reversal of 64955481 is 18455946.

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

It is not a de Polignac number, because 64955481 - 2⁶ = 64955417 is a prime.

It is a super-2 number, since 2×64955481² = 8438429023882722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64955489) 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, 7021 + ... + 13386.

It is an arithmetic number, because the mean of its divisors is an integer number (10836648).

Almost surely, 2^64955481 is an apocalyptic number.

It is an amenable number.

64955481 is a deficient number, since it is larger than the sum of its proper divisors (21737703).

64955481 is a wasteful number, since it uses less digits than its factorization.

64955481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21471.

The product of its digits is 172800, while the sum is 42.

The square root of 64955481 is about 8059.4963242128. The cubic root of 64955481 is about 401.9807606941.

The spelling of 64955481 in words is "sixty-four million, nine hundred fifty-five thousand, four hundred eighty-one".