51334533 has 16 divisors (see below), whose sum is σ = 76167360. Its totient is φ = 34170768.

The previous prime is 51334513. The next prime is 51334559. The reversal of 51334533 is 33543315.

It is a happy number.

51334533 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 51334533 - 2⁶ = 51334469 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51334497 and 51334506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51334513) 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, 25966 + ... + 27872.

It is an arithmetic number, because the mean of its divisors is an integer number (4760460).

Almost surely, 2^51334533 is an apocalyptic number.

It is an amenable number.

51334533 is a deficient number, since it is larger than the sum of its proper divisors (24832827).

51334533 is a wasteful number, since it uses less digits than its factorization.

51334533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913 (or 2907 counting only the distinct ones).

The product of its digits is 8100, while the sum is 27.

The square root of 51334533 is about 7164.8121398959. The cubic root of 51334533 is about 371.6520549889.

Adding to 51334533 its reverse (33543315), we get a palindrome (84877848).

The spelling of 51334533 in words is "fifty-one million, three hundred thirty-four thousand, five hundred thirty-three".