225031351 has 4 divisors (see below), whose sum is σ = 225066592. Its totient is φ = 224996112.

The previous prime is 225031349. The next prime is 225031357. The reversal of 225031351 is 153130522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153130522 = 2 ⋅76565261.

It is a cyclic number.

It is not a de Polignac number, because 225031351 - 2¹ = 225031349 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 (225031357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5055 + ... + 21808.

It is an arithmetic number, because the mean of its divisors is an integer number (56266648).

Almost surely, 2^225031351 is an apocalyptic number.

225031351 is a deficient number, since it is larger than the sum of its proper divisors (35241).

225031351 is an equidigital number, since it uses as much as digits as its factorization.

225031351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35240.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 225031351 is about 15001.0449969327. The cubic root of 225031351 is about 608.2484475957.

Adding to 225031351 its reverse (153130522), we get a palindrome (378161873).

The spelling of 225031351 in words is "two hundred twenty-five million, thirty-one thousand, three hundred fifty-one".