65043225 has 72 divisors (see below), whose sum is σ = 129066392. Its totient is φ = 31104000.

The previous prime is 65043217. The next prime is 65043229. The reversal of 65043225 is 52234056.

65043225 is a `hidden beast` number, since 650 + 4 + 3 + 2 + 2 + 5 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 6245001 + 58798224 = 2499^2 + 7668^2 .

It is not a de Polignac number, because 65043225 - 2³ = 65043217 is a prime.

It is a super-2 number, since 2×65043225² = 8461242236801250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65043229) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 107925 + ... + 108525.

Almost surely, 2^65043225 is an apocalyptic number.

65043225 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

65043225 is a deficient number, since it is larger than the sum of its proper divisors (64023167).

65043225 is a wasteful number, since it uses less digits than its factorization.

65043225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 65043225 is about 8064.9380034815. The cubic root of 65043225 is about 402.1616821976.

The spelling of 65043225 in words is "sixty-five million, forty-three thousand, two hundred twenty-five".