225242051 has 12 divisors (see below), whose sum is σ = 234100368. Its totient is φ = 216559872.

The previous prime is 225242029. The next prime is 225242053. The reversal of 225242051 is 150242522.

It is not a de Polignac number, because 225242051 - 2¹⁴ = 225225667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225242053) 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 11 ways as a sum of consecutive naturals, for example, 347810 + ... + 348456.

It is an arithmetic number, because the mean of its divisors is an integer number (19508364).

Almost surely, 2^225242051 is an apocalyptic number.

225242051 is a deficient number, since it is larger than the sum of its proper divisors (8858317).

225242051 is an frugal number, since it uses more digits than its factorization.

225242051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878 (or 781 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 225242051 is about 15008.0661978817. The cubic root of 225242051 is about 608.4382255525.

Adding to 225242051 its reverse (150242522), we get a palindrome (375484573).

The spelling of 225242051 in words is "two hundred twenty-five million, two hundred forty-two thousand, fifty-one".