51535325 has 6 divisors (see below), whose sum is σ = 63903834. Its totient is φ = 41228240.

The previous prime is 51535321. The next prime is 51535343. The reversal of 51535325 is 52353515.

It can be written as a sum of positive squares in 3 ways, for example, as 241081 + 51294244 = 491^2 + 7162^2 .

It is not a de Polignac number, because 51535325 - 2² = 51535321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51535321) 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, 1030682 + ... + 1030731.

It is an arithmetic number, because the mean of its divisors is an integer number (10650639).

Almost surely, 2^51535325 is an apocalyptic number.

It is an amenable number.

51535325 is a deficient number, since it is larger than the sum of its proper divisors (12368509).

51535325 is a wasteful number, since it uses less digits than its factorization.

51535325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061423 (or 2061418 counting only the distinct ones).

The product of its digits is 11250, while the sum is 29.

The square root of 51535325 is about 7178.8108346717. The cubic root of 51535325 is about 372.1359896113.

The spelling of 51535325 in words is "fifty-one million, five hundred thirty-five thousand, three hundred twenty-five".