201565325 has 12 divisors (see below), whose sum is σ = 269167668. Its totient is φ = 148848000.

The previous prime is 201565313. The next prime is 201565327. The reversal of 201565325 is 523565102.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 10738729 + 190826596 = 3277^2 + 13814^2 .

It is not a de Polignac number, because 201565325 - 2¹² = 201561229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201565327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 309776 + ... + 310425.

It is an arithmetic number, because the mean of its divisors is an integer number (22430639).

Almost surely, 2^201565325 is an apocalyptic number.

201565325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201565325 is a deficient number, since it is larger than the sum of its proper divisors (67602343).

201565325 is a wasteful number, since it uses less digits than its factorization.

201565325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620224 (or 620219 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 201565325 is about 14197.3703551045. The cubic root of 201565325 is about 586.3252639083.

The spelling of 201565325 in words is "two hundred one million, five hundred sixty-five thousand, three hundred twenty-five".