51529317 has 32 divisors (see below), whose sum is σ = 81838080. Its totient is φ = 28217280.

The previous prime is 51529297. The next prime is 51529319. The reversal of 51529317 is 71392515.

It is not a de Polignac number, because 51529317 - 2¹⁹ = 51005029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51529319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116098 + ... + 116540.

It is an arithmetic number, because the mean of its divisors is an integer number (2557440).

Almost surely, 2^51529317 is an apocalyptic number.

It is an amenable number.

51529317 is a deficient number, since it is larger than the sum of its proper divisors (30308763).

51529317 is a wasteful number, since it uses less digits than its factorization.

51529317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673.

The product of its digits is 9450, while the sum is 33.

The square root of 51529317 is about 7178.3923687689. The cubic root of 51529317 is about 372.1215278163.

The spelling of 51529317 in words is "fifty-one million, five hundred twenty-nine thousand, three hundred seventeen".