65310225 has 24 divisors (see below), whose sum is σ = 112677312. Its totient is φ = 33316800.

The previous prime is 65310173. The next prime is 65310251. The reversal of 65310225 is 52201356.

It is not a de Polignac number, because 65310225 - 2⁷ = 65310097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65310195 and 65310204.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17206 + ... + 20655.

It is an arithmetic number, because the mean of its divisors is an integer number (4694888).

Almost surely, 2^65310225 is an apocalyptic number.

It is an amenable number.

65310225 is a deficient number, since it is larger than the sum of its proper divisors (47367087).

65310225 is a wasteful number, since it uses less digits than its factorization.

65310225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37897 (or 37892 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 65310225 is about 8081.4741848254. The cubic root of 65310225 is about 402.7112171511.

It can be divided in two parts, 653 and 10225, that added together give a triangular number (10878 = T₁₄₇).

The spelling of 65310225 in words is "sixty-five million, three hundred ten thousand, two hundred twenty-five".