65256401 has 8 divisors (see below), whose sum is σ = 74745600. Its totient is φ = 55808928.

The previous prime is 65256391. The next prime is 65256427. The reversal of 65256401 is 10465256.

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

It is not a de Polignac number, because 65256401 - 2⁶ = 65256337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65256101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7001 + ... + 13398.

It is an arithmetic number, because the mean of its divisors is an integer number (9343200).

Almost surely, 2^65256401 is an apocalyptic number.

It is an amenable number.

65256401 is a deficient number, since it is larger than the sum of its proper divisors (9489199).

65256401 is a wasteful number, since it uses less digits than its factorization.

65256401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20863.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 65256401 is about 8078.1434129384. The cubic root of 65256401 is about 402.6005581859.

The spelling of 65256401 in words is "sixty-five million, two hundred fifty-six thousand, four hundred one".