64573755 has 8 divisors (see below), whose sum is σ = 103318032. Its totient is φ = 34439328.

The previous prime is 64573753. The next prime is 64573757. The reversal of 64573755 is 55737546.

It is an interprime number because it is at equal distance from previous prime (64573753) and next prime (64573757).

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

It is not a de Polignac number, because 64573755 - 2¹ = 64573753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64573753) 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, 2152444 + ... + 2152473.

It is an arithmetic number, because the mean of its divisors is an integer number (12914754).

Almost surely, 2^64573755 is an apocalyptic number.

64573755 is a deficient number, since it is larger than the sum of its proper divisors (38744277).

64573755 is a wasteful number, since it uses less digits than its factorization.

64573755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304925.

The product of its digits is 441000, while the sum is 42.

The square root of 64573755 is about 8035.7796759244. The cubic root of 64573755 is about 401.1917686092.

The spelling of 64573755 in words is "sixty-four million, five hundred seventy-three thousand, seven hundred fifty-five".