65104225 has 12 divisors (see below), whose sum is σ = 81201276. Its totient is φ = 51778880.

The previous prime is 65104213. The next prime is 65104229. The reversal of 65104225 is 52240156.

65104225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 9168784 + 55935441 = 3028^2 + 7479^2 .

It is not a de Polignac number, because 65104225 - 2⁷ = 65104097 is a prime.

It is a super-2 number, since 2×65104225² = 8477120225701250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65104225.

It is not an unprimeable number, because it can be changed into a prime (65104229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3202 + ... + 11851.

It is an arithmetic number, because the mean of its divisors is an integer number (6766773).

Almost surely, 2^65104225 is an apocalyptic number.

It is an amenable number.

65104225 is a deficient number, since it is larger than the sum of its proper divisors (16097051).

65104225 is a wasteful number, since it uses less digits than its factorization.

65104225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15236 (or 15231 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 65104225 is about 8068.7189193824. The cubic root of 65104225 is about 402.2873637354.

The spelling of 65104225 in words is "sixty-five million, one hundred four thousand, two hundred twenty-five".