10523666 has 4 divisors (see below), whose sum is σ = 15785502. Its totient is φ = 5261832.

The previous prime is 10523657. The next prime is 10523671. The reversal of 10523666 is 66632501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8288641 + 2235025 = 2879^2 + 1495^2 .

It is a super-2 number, since 2×10523666² = 221495092159112, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2630915 + ... + 2630918.

Almost surely, 2^10523666 is an apocalyptic number.

10523666 is a deficient number, since it is larger than the sum of its proper divisors (5261836).

10523666 is an equidigital number, since it uses as much as digits as its factorization.

10523666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5261835.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 10523666 is about 3244.0200369295. The cubic root of 10523666 is about 219.1403505311.

The spelling of 10523666 in words is "ten million, five hundred twenty-three thousand, six hundred sixty-six".