51233361 has 16 divisors (see below), whose sum is σ = 69327360. Its totient is φ = 33651200.

The previous prime is 51233353. The next prime is 51233389. The reversal of 51233361 is 16333215.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51233361 - 2³ = 51233353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51233311) 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 15 ways as a sum of consecutive naturals, for example, 106720 + ... + 107198.

It is an arithmetic number, because the mean of its divisors is an integer number (4332960).

Almost surely, 2^51233361 is an apocalyptic number.

It is an amenable number.

51233361 is a deficient number, since it is larger than the sum of its proper divisors (18093999).

51233361 is a wasteful number, since it uses less digits than its factorization.

51233361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936.

The product of its digits is 1620, while the sum is 24.

The square root of 51233361 is about 7157.7483191294. The cubic root of 51233361 is about 371.4077392021.

Adding to 51233361 its reverse (16333215), we get a palindrome (67566576).

The spelling of 51233361 in words is "fifty-one million, two hundred thirty-three thousand, three hundred sixty-one".