226521045523 has 4 divisors (see below), whose sum is σ = 230795027568. Its totient is φ = 222247063480.

The previous prime is 226521045493. The next prime is 226521045539. The reversal of 226521045523 is 325540125622.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226521045523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226521045823) 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, 2136990943 + ... + 2136991048.

It is an arithmetic number, because the mean of its divisors is an integer number (57698756892).

Almost surely, 2^226521045523 is an apocalyptic number.

226521045523 is a deficient number, since it is larger than the sum of its proper divisors (4273982045).

226521045523 is an equidigital number, since it uses as much as digits as its factorization.

226521045523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4273982044.

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 226521045523 in words is "two hundred twenty-six billion, five hundred twenty-one million, forty-five thousand, five hundred twenty-three".