64255247 has 8 divisors (see below), whose sum is σ = 73729152. Its totient is φ = 54855000.

The previous prime is 64255237. The next prime is 64255249. The reversal of 64255247 is 74255246.

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

It is a cyclic number.

It is not a de Polignac number, because 64255247 - 2⁴ = 64255231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64255249) 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, 16529 + ... + 20042.

It is an arithmetic number, because the mean of its divisors is an integer number (9216144).

Almost surely, 2^64255247 is an apocalyptic number.

64255247 is a deficient number, since it is larger than the sum of its proper divisors (9473905).

64255247 is a wasteful number, since it uses less digits than its factorization.

64255247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36829.

The product of its digits is 67200, while the sum is 35.

The square root of 64255247 is about 8015.9370631262. The cubic root of 64255247 is about 400.5310592116.

Subtracting 64255247 from its reverse (74255246), we obtain a palindrome (9999999).

The spelling of 64255247 in words is "sixty-four million, two hundred fifty-five thousand, two hundred forty-seven".