8520755 has 8 divisors (see below), whose sum is σ = 10241424. Its totient is φ = 6805600.

The previous prime is 8520749. The next prime is 8520761. The reversal of 8520755 is 5570258.

It is a happy number.

8520755 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8520749) and next prime (8520761).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8520755 - 2⁴ = 8520739 is a prime.

It is a Duffinian number.

It is a congruent 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 in 7 ways as a sum of consecutive naturals, for example, 3800 + ... + 5610.

It is an arithmetic number, because the mean of its divisors is an integer number (1280178).

Almost surely, 2^8520755 is an apocalyptic number.

8520755 is a deficient number, since it is larger than the sum of its proper divisors (1720669).

8520755 is a wasteful number, since it uses less digits than its factorization.

8520755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757.

The product of its (nonzero) digits is 14000, while the sum is 32.

The square root of 8520755 is about 2919.0332303693. The cubic root of 8520755 is about 204.2487274368.

The spelling of 8520755 in words is "eight million, five hundred twenty thousand, seven hundred fifty-five".