65478528 has 96 divisors (see below), whose sum is σ = 190466640. Its totient is φ = 21590016.

The previous prime is 65478521. The next prime is 65478557. The reversal of 65478528 is 82587456.

65478528 is a `hidden beast` number, since 6 + 54 + 78 + 528 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65478521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129925 + ... + 130427.

Almost surely, 2^65478528 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 65478528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95233320).

65478528 is an abundant number, since it is smaller than the sum of its proper divisors (124988112).

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

65478528 is a wasteful number, since it uses less digits than its factorization.

65478528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636 (or 621 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 65478528 is about 8091.8803747955. The cubic root of 65478528 is about 403.0568463836.

The spelling of 65478528 in words is "sixty-five million, four hundred seventy-eight thousand, five hundred twenty-eight".