65312225 has 24 divisors (see below), whose sum is σ = 88714560. Its totient is φ = 47304000.

The previous prime is 65312207. The next prime is 65312231. The reversal of 65312225 is 52221356.

It is not a de Polignac number, because 65312225 - 2¹⁰ = 65311201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65312194 and 65312203.

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, 120455 + ... + 120995.

It is an arithmetic number, because the mean of its divisors is an integer number (3696440).

Almost surely, 2^65312225 is an apocalyptic number.

It is an amenable number.

65312225 is a deficient number, since it is larger than the sum of its proper divisors (23402335).

65312225 is a wasteful number, since it uses less digits than its factorization.

65312225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001 (or 996 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 65312225 is about 8081.5979236782. The cubic root of 65312225 is about 402.7153278613.

The spelling of 65312225 in words is "sixty-five million, three hundred twelve thousand, two hundred twenty-five".