226445521 has 8 divisors (see below), whose sum is σ = 233642880. Its totient is φ = 219356592.

The previous prime is 226445507. The next prime is 226445533. The reversal of 226445521 is 125544622.

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

It is a cyclic number.

It is not a de Polignac number, because 226445521 - 2¹¹ = 226443473 is a prime.

It is a super-2 number, since 2×226445521² = 102555147961922882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226445551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22855 + ... + 31228.

It is an arithmetic number, because the mean of its divisors is an integer number (29205360).

Almost surely, 2^226445521 is an apocalyptic number.

It is an amenable number.

226445521 is a deficient number, since it is larger than the sum of its proper divisors (7197359).

226445521 is an equidigital number, since it uses as much as digits as its factorization.

226445521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54215.

The product of its digits is 19200, while the sum is 31.

The square root of 226445521 is about 15048.1068909016. The cubic root of 226445521 is about 609.5199313428.

The spelling of 226445521 in words is "two hundred twenty-six million, four hundred forty-five thousand, five hundred twenty-one".