65451056 has 40 divisors (see below), whose sum is σ = 138849744. Its totient is φ = 29640960.

The previous prime is 65451053. The next prime is 65451059. The reversal of 65451056 is 65015456.

65451056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (65451053) and next prime (65451059).

It is not an unprimeable number, because it can be changed into a prime (65451053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65150 + ... + 66146.

Almost surely, 2^65451056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65451056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69424872).

65451056 is an abundant number, since it is smaller than the sum of its proper divisors (73398688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65451056 is a wasteful number, since it uses less digits than its factorization.

65451056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389 (or 1383 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 65451056 is about 8090.1826926220. The cubic root of 65451056 is about 403.0004700062. Note that the first 3 decimals are identical.

Subtracting from 65451056 its reverse (65015456), we obtain a square (435600 = 660²).

The spelling of 65451056 in words is "sixty-five million, four hundred fifty-one thousand, fifty-six".