8520263 has 4 divisors (see below), whose sum is σ = 8603088. Its totient is φ = 8437440.

The previous prime is 8520241. The next prime is 8520269. The reversal of 8520263 is 3620258.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3620258 = 2 ⋅1810129.

It is a cyclic number.

It is not a de Polignac number, because 8520263 - 2⁸ = 8520007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8520269) 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, 41258 + ... + 41463.

It is an arithmetic number, because the mean of its divisors is an integer number (2150772).

Almost surely, 2^8520263 is an apocalyptic number.

8520263 is a deficient number, since it is larger than the sum of its proper divisors (82825).

8520263 is a wasteful number, since it uses less digits than its factorization.

8520263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82824.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 8520263 is about 2918.9489546753. The cubic root of 8520263 is about 204.2447961612.

It can be divided in two parts, 85202 and 63, that multiplied together give a triangular number (5367726 = T₃₂₇₆).

The spelling of 8520263 in words is "eight million, five hundred twenty thousand, two hundred sixty-three".