65528001 has 64 divisors (see below), whose sum is σ = 124016640. Its totient is φ = 33203520.

The previous prime is 65527997. The next prime is 65528009. The reversal of 65528001 is 10082556.

65528001 is a `hidden beast` number, since 655 + 2 + 8 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 65528001 - 2² = 65527997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (65528009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 89031 + ... + 89763.

It is an arithmetic number, because the mean of its divisors is an integer number (1937760).

Almost surely, 2^65528001 is an apocalyptic number.

It is an amenable number.

65528001 is a deficient number, since it is larger than the sum of its proper divisors (58488639).

65528001 is a wasteful number, since it uses less digits than its factorization.

65528001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 65528001 is about 8094.9367508338. The cubic root of 65528001 is about 403.1583321276.

The spelling of 65528001 in words is "sixty-five million, five hundred twenty-eight thousand, one".