65525530 has 32 divisors (see below), whose sum is σ = 136652544. Its totient is φ = 22156416.

The previous prime is 65525527. The next prime is 65525533. The reversal of 65525530 is 3552556.

It is an interprime number because it is at equal distance from previous prime (65525527) and next prime (65525533).

It is a junction number, because it is equal to n+sod(n) for n = 65525492 and 65525501.

It is not an unprimeable number, because it can be changed into a prime (65525533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1302 + ... + 11521.

It is an arithmetic number, because the mean of its divisors is an integer number (4270392).

Almost surely, 2^65525530 is an apocalyptic number.

65525530 is an abundant number, since it is smaller than the sum of its proper divisors (71127014).

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

65525530 is a wasteful number, since it uses less digits than its factorization.

65525530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12910.

The product of its (nonzero) digits is 22500, while the sum is 31.

The square root of 65525530 is about 8094.7841231252. The cubic root of 65525530 is about 403.1532644886.

The spelling of 65525530 in words is "sixty-five million, five hundred twenty-five thousand, five hundred thirty".