10522521 has 8 divisors (see below), whose sum is σ = 15588960. Its totient is φ = 7014996.

The previous prime is 10522511. The next prime is 10522531. The reversal of 10522521 is 12522501.

It is an interprime number because it is at equal distance from previous prime (10522511) and next prime (10522531).

It is not a de Polignac number, because 10522521 - 2⁵ = 10522489 is a prime.

It is a super-2 number, since 2×10522521² = 221446896390882, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 10522494 and 10522503.

It is not an unprimeable number, because it can be changed into a prime (10522511) 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 in 7 ways as a sum of consecutive naturals, for example, 194835 + ... + 194888.

It is an arithmetic number, because the mean of its divisors is an integer number (1948620).

Almost surely, 2^10522521 is an apocalyptic number.

It is an amenable number.

10522521 is a deficient number, since it is larger than the sum of its proper divisors (5066439).

10522521 is an equidigital number, since it uses as much as digits as its factorization.

10522521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389732 (or 389726 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 10522521 is about 3243.8435535642. The cubic root of 10522521 is about 219.1324025783.

The spelling of 10522521 in words is "ten million, five hundred twenty-two thousand, five hundred twenty-one".