51604133 has 16 divisors (see below), whose sum is σ = 62699520. Its totient is φ = 41486256.

The previous prime is 51604127. The next prime is 51604183. The reversal of 51604133 is 33140615.

It is a happy number.

51604133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51604133 - 2¹² = 51600037 is a prime.

It is a super-3 number, since 3×51604133³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51604099 and 51604108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51604103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11816 + ... + 15582.

It is an arithmetic number, because the mean of its divisors is an integer number (3918720).

Almost surely, 2^51604133 is an apocalyptic number.

It is an amenable number.

51604133 is a deficient number, since it is larger than the sum of its proper divisors (11095387).

51604133 is a wasteful number, since it uses less digits than its factorization.

51604133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3896.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 51604133 is about 7183.6016732556. The cubic root of 51604133 is about 372.3015365482.

Adding to 51604133 its reverse (33140615), we get a palindrome (84744748).

The spelling of 51604133 in words is "fifty-one million, six hundred four thousand, one hundred thirty-three".