225351774 has 16 divisors (see below), whose sum is σ = 500781840. Its totient is φ = 75117240.

The previous prime is 225351773. The next prime is 225351781. The reversal of 225351774 is 477153522.

225351774 is a `hidden beast` number, since 22 + 53 + 517 + 74 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225351773) 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, 2086537 + ... + 2086644.

It is an arithmetic number, because the mean of its divisors is an integer number (31298865).

Almost surely, 2^225351774 is an apocalyptic number.

225351774 is an abundant number, since it is smaller than the sum of its proper divisors (275430066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225351774 is a wasteful number, since it uses less digits than its factorization.

225351774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173192 (or 4173186 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 225351774 is about 15011.7212204331. The cubic root of 225351774 is about 608.5370064414.

The spelling of 225351774 in words is "two hundred twenty-five million, three hundred fifty-one thousand, seven hundred seventy-four".