65525403 has 8 divisors (see below), whose sum is σ = 88598016. Its totient is φ = 43068200.

The previous prime is 65525401. The next prime is 65525431. The reversal of 65525403 is 30452556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65525403 - 2¹ = 65525401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65525401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153603 + ... + 154028.

It is an arithmetic number, because the mean of its divisors is an integer number (11074752).

Almost surely, 2^65525403 is an apocalyptic number.

65525403 is a deficient number, since it is larger than the sum of its proper divisors (23072613).

65525403 is a wasteful number, since it uses less digits than its factorization.

65525403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307705.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 65525403 is about 8094.7762785638. The cubic root of 65525403 is about 403.1530040278.

Adding to 65525403 its reverse (30452556), we get a palindrome (95977959).

The spelling of 65525403 in words is "sixty-five million, five hundred twenty-five thousand, four hundred three".