65525633 has 4 divisors (see below), whose sum is σ = 69380100. Its totient is φ = 61671168.

The previous prime is 65525609. The next prime is 65525639. The reversal of 65525633 is 33652556.

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

It can be written as a sum of positive squares in 2 ways, for example, as 54878464 + 10647169 = 7408^2 + 3263^2 .

It is a cyclic number.

It is not a de Polignac number, because 65525633 - 2⁸ = 65525377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65525593 and 65525602.

It is not an unprimeable number, because it can be changed into a prime (65525639) 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, 1927208 + ... + 1927241.

It is an arithmetic number, because the mean of its divisors is an integer number (17345025).

Almost surely, 2^65525633 is an apocalyptic number.

It is an amenable number.

65525633 is a deficient number, since it is larger than the sum of its proper divisors (3854467).

65525633 is a wasteful number, since it uses less digits than its factorization.

65525633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3854466.

The product of its digits is 81000, while the sum is 35.

The square root of 65525633 is about 8094.7904852442. The cubic root of 65525633 is about 403.1534757282.

The spelling of 65525633 in words is "sixty-five million, five hundred twenty-five thousand, six hundred thirty-three".