64256361 has 8 divisors (see below), whose sum is σ = 92265600. Its totient is φ = 39542352.

The previous prime is 64256351. The next prime is 64256371. The reversal of 64256361 is 16365246.

It is an interprime number because it is at equal distance from previous prime (64256351) and next prime (64256371).

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

It is not a de Polignac number, because 64256361 - 2¹⁰ = 64255337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64256321) 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, 823761 + ... + 823838.

It is an arithmetic number, because the mean of its divisors is an integer number (11533200).

Almost surely, 2^64256361 is an apocalyptic number.

It is an amenable number.

64256361 is a deficient number, since it is larger than the sum of its proper divisors (28009239).

64256361 is a wasteful number, since it uses less digits than its factorization.

64256361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647615.

The product of its digits is 25920, while the sum is 33.

The square root of 64256361 is about 8016.0065493985. The cubic root of 64256361 is about 400.5333738813.

The spelling of 64256361 in words is "sixty-four million, two hundred fifty-six thousand, three hundred sixty-one".