225953317 has 4 divisors (see below), whose sum is σ = 225984780. Its totient is φ = 225921856.

The previous prime is 225953309. The next prime is 225953353. The reversal of 225953317 is 713359522.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 175059361 + 50893956 = 13231^2 + 7134^2 .

It is a cyclic number.

It is not a de Polignac number, because 225953317 - 2³ = 225953309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225953617) 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, 909 + ... + 21277.

It is an arithmetic number, because the mean of its divisors is an integer number (56496195).

Almost surely, 2^225953317 is an apocalyptic number.

It is an amenable number.

225953317 is a deficient number, since it is larger than the sum of its proper divisors (31463).

225953317 is a wasteful number, since it uses less digits than its factorization.

225953317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31462.

The product of its digits is 56700, while the sum is 37.

The square root of 225953317 is about 15031.7436447007. The cubic root of 225953317 is about 609.0779916707.

The spelling of 225953317 in words is "two hundred twenty-five million, nine hundred fifty-three thousand, three hundred seventeen".