225851057 has 2 divisors, whose sum is σ = 225851058. Its totient is φ = 225851056.

The previous prime is 225851039. The next prime is 225851063. The reversal of 225851057 is 750158522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141229456 + 84621601 = 11884^2 + 9199^2 .

It is a cyclic number.

It is not a de Polignac number, because 225851057 - 2¹² = 225846961 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (225851077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112925528 + 112925529.

It is an arithmetic number, because the mean of its divisors is an integer number (112925529).

Almost surely, 2^225851057 is an apocalyptic number.

It is an amenable number.

225851057 is a deficient number, since it is larger than the sum of its proper divisors (1).

225851057 is an equidigital number, since it uses as much as digits as its factorization.

225851057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 225851057 is about 15028.3417914286. The cubic root of 225851057 is about 608.9860940542.

The spelling of 225851057 in words is "two hundred twenty-five million, eight hundred fifty-one thousand, fifty-seven".