51532317 has 12 divisors (see below), whose sum is σ = 75204220. Its totient is φ = 34000128.

The previous prime is 51532301. The next prime is 51532331. The reversal of 51532317 is 71323515.

It can be written as a sum of positive squares in 2 ways, for example, as 14699556 + 36832761 = 3834^2 + 6069^2 .

It is not a de Polignac number, because 51532317 - 2⁴ = 51532301 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 (51532337) 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 11 ways as a sum of consecutive naturals, for example, 28642 + ... + 30387.

Almost surely, 2^51532317 is an apocalyptic number.

It is an amenable number.

51532317 is a deficient number, since it is larger than the sum of its proper divisors (23671903).

51532317 is a wasteful number, since it uses less digits than its factorization.

51532317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59132 (or 59129 counting only the distinct ones).

The product of its digits is 3150, while the sum is 27.

The square root of 51532317 is about 7178.6013261638. The cubic root of 51532317 is about 372.1287492259.

The spelling of 51532317 in words is "fifty-one million, five hundred thirty-two thousand, three hundred seventeen".