65938225 has 6 divisors (see below), whose sum is σ = 81763430. Its totient is φ = 52750560.

The previous prime is 65938211. The next prime is 65938241. The reversal of 65938225 is 52283956.

It can be written as a sum of positive squares in 3 ways, for example, as 14615329 + 51322896 = 3823^2 + 7164^2 .

It is not a de Polignac number, because 65938225 - 2⁵ = 65938193 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1318740 + ... + 1318789.

Almost surely, 2^65938225 is an apocalyptic number.

It is an amenable number.

65938225 is a deficient number, since it is larger than the sum of its proper divisors (15825205).

65938225 is a wasteful number, since it uses less digits than its factorization.

65938225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637539 (or 2637534 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The square root of 65938225 is about 8120.2355261409. The cubic root of 65938225 is about 403.9978780564.

The spelling of 65938225 in words is "sixty-five million, nine hundred thirty-eight thousand, two hundred twenty-five".