225416257 has 4 divisors (see below), whose sum is σ = 245908656. Its totient is φ = 204923860.

The previous prime is 225416239. The next prime is 225416281. The reversal of 225416257 is 752614522.

225416257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 225416257 - 2¹⁵ = 225383489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225416287) 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, 10246183 + ... + 10246204.

It is an arithmetic number, because the mean of its divisors is an integer number (61477164).

Almost surely, 2^225416257 is an apocalyptic number.

It is an amenable number.

225416257 is a deficient number, since it is larger than the sum of its proper divisors (20492399).

225416257 is a wasteful number, since it uses less digits than its factorization.

225416257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20492398.

The product of its digits is 33600, while the sum is 34.

The square root of 225416257 is about 15013.8688218593. The cubic root of 225416257 is about 608.5950439249.

The spelling of 225416257 in words is "two hundred twenty-five million, four hundred sixteen thousand, two hundred fifty-seven".