225851049 has 12 divisors (see below), whose sum is σ = 329460612. Its totient is φ = 149076000.

The previous prime is 225851039. The next prime is 225851057. The reversal of 225851049 is 940158522.

225851049 is a `hidden beast` number, since 22 + 585 + 10 + 49 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 138297600 + 87553449 = 11760^2 + 9357^2 .

It is not a de Polignac number, because 225851049 - 2¹⁶ = 225785513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225851009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123322 + ... + 125139.

It is an arithmetic number, because the mean of its divisors is an integer number (27455051).

Almost surely, 2^225851049 is an apocalyptic number.

It is an amenable number.

225851049 is a deficient number, since it is larger than the sum of its proper divisors (103609563).

225851049 is a wasteful number, since it uses less digits than its factorization.

225851049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248568 (or 248565 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 225851049 is about 15028.3415252649. The cubic root of 225851049 is about 608.9860868637.

The spelling of 225851049 in words is "two hundred twenty-five million, eight hundred fifty-one thousand, forty-nine".