10522661 has 4 divisors (see below), whose sum is σ = 10980192. Its totient is φ = 10065132.

The previous prime is 10522627. The next prime is 10522667. The reversal of 10522661 is 16622501.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16622501 = 7 ⋅2374643.

It is a cyclic number.

It is not a de Polignac number, because 10522661 - 2⁶ = 10522597 is a prime.

It is a super-2 number, since 2×10522661² = 221452789041842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 457507 = 10522661 / (1 + 0 + 5 + 2 + 2 + 6 + 6 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10522667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228731 + ... + 228776.

It is an arithmetic number, because the mean of its divisors is an integer number (2745048).

Almost surely, 2^10522661 is an apocalyptic number.

It is an amenable number.

10522661 is a deficient number, since it is larger than the sum of its proper divisors (457531).

10522661 is an equidigital number, since it uses as much as digits as its factorization.

10522661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457530.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 10522661 is about 3243.8651328315. The cubic root of 10522661 is about 219.1333744114.

The spelling of 10522661 in words is "ten million, five hundred twenty-two thousand, six hundred sixty-one".