51133361 has 8 divisors (see below), whose sum is σ = 52239264. Its totient is φ = 50038560.

The previous prime is 51133343. The next prime is 51133367. The reversal of 51133361 is 16333115.

It is a happy number.

51133361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51133361 - 2¹⁰ = 51132337 is a prime.

It is a super-2 number, since 2×51133361² = 5229241214312642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51133367) 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 7 ways as a sum of consecutive naturals, for example, 6890 + ... + 12236.

It is an arithmetic number, because the mean of its divisors is an integer number (6529908).

Almost surely, 2^51133361 is an apocalyptic number.

It is an amenable number.

51133361 is a deficient number, since it is larger than the sum of its proper divisors (1105903).

51133361 is a wasteful number, since it uses less digits than its factorization.

51133361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5551.

The product of its digits is 810, while the sum is 23.

The square root of 51133361 is about 7150.7594701542. The cubic root of 51133361 is about 371.1659373509.

Adding to 51133361 its reverse (16333115), we get a palindrome (67466476).

The spelling of 51133361 in words is "fifty-one million, one hundred thirty-three thousand, three hundred sixty-one".