51535873 has 8 divisors (see below), whose sum is σ = 52044416. Its totient is φ = 51030000.

The previous prime is 51535867. The next prime is 51535877. The reversal of 51535873 is 37853515.

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 51535873 - 2¹³ = 51527681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51535877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68248 + ... + 68998.

It is an arithmetic number, because the mean of its divisors is an integer number (6505552).

It is a Proth number, since it is equal to 6291 ⋅ 2¹³ + 1 and 6291 < 2¹³.

Almost surely, 2^51535873 is an apocalyptic number.

It is an amenable number.

51535873 is a deficient number, since it is larger than the sum of its proper divisors (508543).

51535873 is a wasteful number, since it uses less digits than its factorization.

51535873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335.

The product of its digits is 63000, while the sum is 37.

The square root of 51535873 is about 7178.8490024516. The cubic root of 51535873 is about 372.1373086405.

It can be divided in two parts, 5153 and 5873, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 51535873 in words is "fifty-one million, five hundred thirty-five thousand, eight hundred seventy-three".