64755799 has 4 divisors (see below), whose sum is σ = 64777336. Its totient is φ = 64734264.

The previous prime is 64755797. The next prime is 64755871. The reversal of 64755799 is 99755746.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99755746 = 2 ⋅49877873.

It is a cyclic number.

It is not a de Polignac number, because 64755799 - 2¹ = 64755797 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 (64755793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5349 + ... + 12574.

It is an arithmetic number, because the mean of its divisors is an integer number (16194334).

Almost surely, 2^64755799 is an apocalyptic number.

64755799 is a deficient number, since it is larger than the sum of its proper divisors (21537).

64755799 is a wasteful number, since it uses less digits than its factorization.

64755799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21536.

The product of its digits is 2381400, while the sum is 52.

The square root of 64755799 is about 8047.0987939754. The cubic root of 64755799 is about 401.5684233326.

The spelling of 64755799 in words is "sixty-four million, seven hundred fifty-five thousand, seven hundred ninety-nine".