8495540221 has 4 divisors (see below), whose sum is σ = 9709188832. Its totient is φ = 7281891612.

The previous prime is 8495540201. The next prime is 8495540231. The reversal of 8495540221 is 1220455948.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 8495540221 - 2⁹ = 8495539709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8495540201) 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, 606824295 + ... + 606824308.

It is an arithmetic number, because the mean of its divisors is an integer number (2427297208).

Almost surely, 2^8495540221 is an apocalyptic number.

It is an amenable number.

8495540221 is a deficient number, since it is larger than the sum of its proper divisors (1213648611).

8495540221 is a wasteful number, since it uses less digits than its factorization.

8495540221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213648610.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 8495540221 is about 92171.2548520416. The cubic root of 8495540221 is about 2040.4705614632.

The spelling of 8495540221 in words is "eight billion, four hundred ninety-five million, five hundred forty thousand, two hundred twenty-one".