51045533 has 64 divisors (see below), whose sum is σ = 73543680. Its totient is φ = 34214400.

The previous prime is 51045523. The next prime is 51045541. The reversal of 51045533 is 33554015.

51045533 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 51045533 - 2⁴ = 51045517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51045503) 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 63 ways as a sum of consecutive naturals, for example, 1244993 + ... + 1245033.

It is an arithmetic number, because the mean of its divisors is an integer number (1149120).

Almost surely, 2^51045533 is an apocalyptic number.

It is an amenable number.

51045533 is a deficient number, since it is larger than the sum of its proper divisors (22498147).

51045533 is a wasteful number, since it uses less digits than its factorization.

51045533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 51045533 is about 7144.6156649606. The cubic root of 51045533 is about 370.9533074533.

Adding to 51045533 its reverse (33554015), we get a palindrome (84599548).

The spelling of 51045533 in words is "fifty-one million, forty-five thousand, five hundred thirty-three".