225181051 has 2 divisors, whose sum is σ = 225181052. Its totient is φ = 225181050.

The previous prime is 225180919. The next prime is 225181057. The reversal of 225181051 is 150181522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225181051 - 2¹³ = 225172859 is a prime.

It is not a weakly prime, because it can be changed into another prime (225181057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112590525 + 112590526.

It is an arithmetic number, because the mean of its divisors is an integer number (112590526).

Almost surely, 2^225181051 is an apocalyptic number.

225181051 is a deficient number, since it is larger than the sum of its proper divisors (1).

225181051 is an equidigital number, since it uses as much as digits as its factorization.

225181051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 225181051 is about 15006.0338197673. The cubic root of 225181051 is about 608.3832948937.

The spelling of 225181051 in words is "two hundred twenty-five million, one hundred eighty-one thousand, fifty-one".