51534539 has 8 divisors (see below), whose sum is σ = 58956288. Its totient is φ = 44127720.

The previous prime is 51534523. The next prime is 51534541. The reversal of 51534539 is 93543515.

51534539 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 not a de Polignac number, because 51534539 - 2⁴ = 51534523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51534499 and 51534508.

It is not an unprimeable number, because it can be changed into a prime (51533539) 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, 5054 + ... + 11340.

It is an arithmetic number, because the mean of its divisors is an integer number (7369536).

Almost surely, 2^51534539 is an apocalyptic number.

51534539 is a deficient number, since it is larger than the sum of its proper divisors (7421749).

51534539 is a wasteful number, since it uses less digits than its factorization.

51534539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7465.

The product of its digits is 40500, while the sum is 35.

The square root of 51534539 is about 7178.7560900201. The cubic root of 51534539 is about 372.1340977027.

The spelling of 51534539 in words is "fifty-one million, five hundred thirty-four thousand, five hundred thirty-nine".