65430528 has 132 divisors (see below), whose sum is σ = 187177680. Its totient is φ = 20312064.

The previous prime is 65430517. The next prime is 65430539. The reversal of 65430528 is 82503456.

It is an interprime number because it is at equal distance from previous prime (65430517) and next prime (65430539).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1108963 + ... + 1109021.

Almost surely, 2^65430528 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 65430528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93588840).

65430528 is an abundant number, since it is smaller than the sum of its proper divisors (121747152).

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

65430528 is a wasteful number, since it uses less digits than its factorization.

65430528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 65430528 is about 8088.9138949552. The cubic root of 65430528 is about 402.9583333869.

The spelling of 65430528 in words is "sixty-five million, four hundred thirty thousand, five hundred twenty-eight".