10529521 has 2 divisors, whose sum is σ = 10529522. Its totient is φ = 10529520.

The previous prime is 10529507. The next prime is 10529557. The reversal of 10529521 is 12592501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5290000 + 5239521 = 2300^2 + 2289^2 .

It is an emirp because it is prime and its reverse (12592501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10529521 - 2²³ = 2140913 is a prime.

It is a super-2 number, since 2×10529521² = 221741624978882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10529221) 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 as a sum of consecutive naturals, namely, 5264760 + 5264761.

It is an arithmetic number, because the mean of its divisors is an integer number (5264761).

Almost surely, 2^10529521 is an apocalyptic number.

It is an amenable number.

10529521 is a deficient number, since it is larger than the sum of its proper divisors (1).

10529521 is an equidigital number, since it uses as much as digits as its factorization.

10529521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 10529521 is about 3244.9223411355. The cubic root of 10529521 is about 219.1809836741.

The spelling of 10529521 in words is "ten million, five hundred twenty-nine thousand, five hundred twenty-one".