225290097 has 12 divisors (see below), whose sum is σ = 326361360. Its totient is φ = 149758488.

The previous prime is 225290071. The next prime is 225290099. The reversal of 225290097 is 790092522.

It is not a de Polignac number, because 225290097 - 2⁶ = 225290033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225290099) 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, 32947 + ... + 39192.

It is an arithmetic number, because the mean of its divisors is an integer number (27196780).

Almost surely, 2^225290097 is an apocalyptic number.

It is an amenable number.

225290097 is a deficient number, since it is larger than the sum of its proper divisors (101071263).

225290097 is a wasteful number, since it uses less digits than its factorization.

225290097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72492 (or 72489 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 225290097 is about 15009.6667851089. Note that the first 3 decimals coincide. The cubic root of 225290097 is about 608.4814841189.

The spelling of 225290097 in words is "two hundred twenty-five million, two hundred ninety thousand, ninety-seven".