65867225 has 6 divisors (see below), whose sum is σ = 81675390. Its totient is φ = 52693760.

The previous prime is 65867213. The next prime is 65867227. The reversal of 65867225 is 52276856.

It can be written as a sum of positive squares in 3 ways, for example, as 4338889 + 61528336 = 2083^2 + 7844^2 .

It is not a de Polignac number, because 65867225 - 2¹² = 65863129 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65867227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1317320 + ... + 1317369.

It is an arithmetic number, because the mean of its divisors is an integer number (13612565).

Almost surely, 2^65867225 is an apocalyptic number.

It is an amenable number.

65867225 is a deficient number, since it is larger than the sum of its proper divisors (15808165).

65867225 is a wasteful number, since it uses less digits than its factorization.

65867225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634699 (or 2634694 counting only the distinct ones).

The product of its digits is 201600, while the sum is 41.

The square root of 65867225 is about 8115.8625542822. The cubic root of 65867225 is about 403.8528223331.

The spelling of 65867225 in words is "sixty-five million, eight hundred sixty-seven thousand, two hundred twenty-five".