10520663 has 4 divisors (see below), whose sum is σ = 10537968. Its totient is φ = 10503360.

The previous prime is 10520651. The next prime is 10520669. The reversal of 10520663 is 36602501.

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

It is a cyclic number.

It is not a de Polignac number, because 10520663 - 2⁴ = 10520647 is a prime.

It is a super-2 number, since 2×10520663² = 221368699919138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10520669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7706 + ... + 8967.

It is an arithmetic number, because the mean of its divisors is an integer number (2634492).

Almost surely, 2^10520663 is an apocalyptic number.

10520663 is a deficient number, since it is larger than the sum of its proper divisors (17305).

10520663 is an equidigital number, since it uses as much as digits as its factorization.

10520663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17304.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 10520663 is about 3243.5571522635. The cubic root of 10520663 is about 219.1195041493.

The spelling of 10520663 in words is "ten million, five hundred twenty thousand, six hundred sixty-three".