10571521 has 2 divisors, whose sum is σ = 10571522. Its totient is φ = 10571520.

The previous prime is 10571503. The next prime is 10571531. The reversal of 10571521 is 12517501.

10571521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6426225 + 4145296 = 2535^2 + 2036^2 .

It is a cyclic number.

It is not a de Polignac number, because 10571521 - 2¹⁷ = 10440449 is a prime.

It is a super-2 number, since 2×10571521² = 223514112506882, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 10571492 and 10571501.

It is not a weakly prime, because it can be changed into another prime (10571531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5285760 + 5285761.

It is an arithmetic number, because the mean of its divisors is an integer number (5285761).

Almost surely, 2^10571521 is an apocalyptic number.

It is an amenable number.

10571521 is a deficient number, since it is larger than the sum of its proper divisors (1).

10571521 is an equidigital number, since it uses as much as digits as its factorization.

10571521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 350, while the sum is 22.

The square root of 10571521 is about 3251.3875499546. The cubic root of 10571521 is about 219.4720190290.

The spelling of 10571521 in words is "ten million, five hundred seventy-one thousand, five hundred twenty-one".