51333441 has 16 divisors (see below), whose sum is σ = 69537600. Its totient is φ = 33680448.

The previous prime is 51333431. The next prime is 51333461. The reversal of 51333441 is 14433315.

It is a happy number.

It is not a de Polignac number, because 51333441 - 2⁵ = 51333409 is a prime.

It is a super-3 number, since 3×51333441³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (51333431) 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, 58095 + ... + 58971.

It is an arithmetic number, because the mean of its divisors is an integer number (4346100).

Almost surely, 2^51333441 is an apocalyptic number.

It is an amenable number.

51333441 is a deficient number, since it is larger than the sum of its proper divisors (18204159).

51333441 is a wasteful number, since it uses less digits than its factorization.

51333441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168.

The product of its digits is 2160, while the sum is 24.

The square root of 51333441 is about 7164.7359337243. The cubic root of 51333441 is about 371.6494196809.

Adding to 51333441 its reverse (14433315), we get a palindrome (65766756).

The spelling of 51333441 in words is "fifty-one million, three hundred thirty-three thousand, four hundred forty-one".