66532529 has 4 divisors (see below), whose sum is σ = 76037184. Its totient is φ = 57027876.

The previous prime is 66532519. The next prime is 66532597. The reversal of 66532529 is 92523566.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66532529 - 2²⁰ = 65483953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66532492 and 66532501.

It is not an unprimeable number, because it can be changed into a prime (66532519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4752317 + ... + 4752330.

It is an arithmetic number, because the mean of its divisors is an integer number (19009296).

Almost surely, 2^66532529 is an apocalyptic number.

It is an amenable number.

66532529 is a deficient number, since it is larger than the sum of its proper divisors (9504655).

66532529 is an equidigital number, since it uses as much as digits as its factorization.

66532529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9504654.

The product of its digits is 97200, while the sum is 38.

The square root of 66532529 is about 8156.7474522631. The cubic root of 66532529 is about 405.2079996452.

The spelling of 66532529 in words is "sixty-six million, five hundred thirty-two thousand, five hundred twenty-nine".