226555257 has 4 divisors (see below), whose sum is σ = 302073680. Its totient is φ = 151036836.

The previous prime is 226555247. The next prime is 226555271. The reversal of 226555257 is 752555622.

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 not a de Polignac number, because 226555257 - 2⁸ = 226555001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226555247) 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, 37759207 + ... + 37759212.

It is an arithmetic number, because the mean of its divisors is an integer number (75518420).

Almost surely, 2^226555257 is an apocalyptic number.

It is an amenable number.

226555257 is a deficient number, since it is larger than the sum of its proper divisors (75518423).

226555257 is an equidigital number, since it uses as much as digits as its factorization.

226555257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75518422.

The product of its digits is 210000, while the sum is 39.

The square root of 226555257 is about 15051.7526222032. The cubic root of 226555257 is about 609.6183736781.

The spelling of 226555257 in words is "two hundred twenty-six million, five hundred fifty-five thousand, two hundred fifty-seven".