225999487 has 16 divisors (see below), whose sum is σ = 262528000. Its totient is φ = 190550880.

The previous prime is 225999469. The next prime is 225999539. The reversal of 225999487 is 784999522.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225999487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225999467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192412 + ... + 193582.

It is an arithmetic number, because the mean of its divisors is an integer number (16408000).

Almost surely, 2^225999487 is an apocalyptic number.

225999487 is a deficient number, since it is larger than the sum of its proper divisors (36528513).

225999487 is a wasteful number, since it uses less digits than its factorization.

225999487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606.

The product of its digits is 3265920, while the sum is 55.

The square root of 225999487 is about 15033.2793162370. The cubic root of 225999487 is about 609.1194740088.

The spelling of 225999487 in words is "two hundred twenty-five million, nine hundred ninety-nine thousand, four hundred eighty-seven".