65136225 has 48 divisors (see below), whose sum is σ = 134277120. Its totient is φ = 27067200.

The previous prime is 65136223. The next prime is 65136259. The reversal of 65136225 is 52263156.

It is not a de Polignac number, because 65136225 - 2¹ = 65136223 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65136192 and 65136201.

It is not an unprimeable number, because it can be changed into a prime (65136223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136 + ... + 11414.

It is an arithmetic number, because the mean of its divisors is an integer number (2797440).

Almost surely, 2^65136225 is an apocalyptic number.

It is an amenable number.

65136225 is an abundant number, since it is smaller than the sum of its proper divisors (69140895).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65136225 is a wasteful number, since it uses less digits than its factorization.

65136225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11310 (or 11305 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 65136225 is about 8070.7016423605. The cubic root of 65136225 is about 402.3532636422.

The spelling of 65136225 in words is "sixty-five million, one hundred thirty-six thousand, two hundred twenty-five".