75528829 has 2 divisors, whose sum is σ = 75528830. Its totient is φ = 75528828.

The previous prime is 75528809. The next prime is 75528863. The reversal of 75528829 is 92882557.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41306329 + 34222500 = 6427^2 + 5850^2 .

It is an emirp because it is prime and its reverse (92882557) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75528829 - 2⁷ = 75528701 is a prime.

It is a super-2 number, since 2×75528829² = 11409208020222482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75528809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37764414 + 37764415.

It is an arithmetic number, because the mean of its divisors is an integer number (37764415).

Almost surely, 2^75528829 is an apocalyptic number.

It is an amenable number.

75528829 is a deficient number, since it is larger than the sum of its proper divisors (1).

75528829 is an equidigital number, since it uses as much as digits as its factorization.

75528829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 403200, while the sum is 46.

The square root of 75528829 is about 8690.7323626953. The cubic root of 75528829 is about 422.7051935605.

It can be divided in two parts, 755 and 28829, that added together give a square (29584 = 172²).

The spelling of 75528829 in words is "seventy-five million, five hundred twenty-eight thousand, eight hundred twenty-nine".