51533207 has 8 divisors (see below), whose sum is σ = 56271360. Its totient is φ = 46803960.

The previous prime is 51533189. The next prime is 51533213. The reversal of 51533207 is 70233515.

51533207 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 51533207 - 2⁶ = 51533143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51533257) 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, 17594 + ... + 20312.

It is an arithmetic number, because the mean of its divisors is an integer number (7033920).

Almost surely, 2^51533207 is an apocalyptic number.

51533207 is a deficient number, since it is larger than the sum of its proper divisors (4738153).

51533207 is a wasteful number, since it uses less digits than its factorization.

51533207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4453.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 51533207 is about 7178.6633156877. The cubic root of 51533207 is about 372.1308915236.

The spelling of 51533207 in words is "fifty-one million, five hundred thirty-three thousand, two hundred seven".