51532529 has 2 divisors, whose sum is σ = 51532530. Its totient is φ = 51532528.

The previous prime is 51532501. The next prime is 51532543. The reversal of 51532529 is 92523515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33085504 + 18447025 = 5752^2 + 4295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51532529 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 51532495 and 51532504.

It is not a weakly prime, because it can be changed into another prime (51532829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25766264 + 25766265.

It is an arithmetic number, because the mean of its divisors is an integer number (25766265).

Almost surely, 2^51532529 is an apocalyptic number.

It is an amenable number.

51532529 is a deficient number, since it is larger than the sum of its proper divisors (1).

51532529 is an equidigital number, since it uses as much as digits as its factorization.

51532529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13500, while the sum is 32.

The square root of 51532529 is about 7178.6160922562. The cubic root of 51532529 is about 372.1292595283.

The spelling of 51532529 in words is "fifty-one million, five hundred thirty-two thousand, five hundred twenty-nine".