65528907 has 4 divisors (see below), whose sum is σ = 87371880. Its totient is φ = 43685936.

The previous prime is 65528867. The next prime is 65528917. The reversal of 65528907 is 70982556.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65528907 - 2⁸ = 65528651 is a prime.

It is a super-2 number, since 2×65528907² = 8588075305229298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65528917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10921482 + ... + 10921487.

It is an arithmetic number, because the mean of its divisors is an integer number (21842970).

Almost surely, 2^65528907 is an apocalyptic number.

65528907 is a deficient number, since it is larger than the sum of its proper divisors (21842973).

65528907 is a wasteful number, since it uses less digits than its factorization.

65528907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21842972.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 65528907 is about 8094.9927115471. The cubic root of 65528907 is about 403.1601901616.

The spelling of 65528907 in words is "sixty-five million, five hundred twenty-eight thousand, nine hundred seven".