65124225 has 36 divisors (see below), whose sum is σ = 117226252. Its totient is φ = 34560000.

The previous prime is 65124221. The next prime is 65124299. The reversal of 65124225 is 52242156.

65124225 is a `hidden beast` number, since 651 + 2 + 4 + 2 + 2 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 9054081 + 56070144 = 3009^2 + 7488^2 .

It is not a de Polignac number, because 65124225 - 2² = 65124221 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65124221) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 53625 + ... + 54825.

Almost surely, 2^65124225 is an apocalyptic number.

It is an amenable number.

65124225 is a deficient number, since it is larger than the sum of its proper divisors (52102027).

65124225 is a wasteful number, since it uses less digits than its factorization.

65124225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458 (or 1450 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 65124225 is about 8069.9581783303. The cubic root of 65124225 is about 402.3285537070.

The spelling of 65124225 in words is "sixty-five million, one hundred twenty-four thousand, two hundred twenty-five".