225372518 has 16 divisors (see below), whose sum is σ = 386636544. Its totient is φ = 96517320.

The previous prime is 225372517. The next prime is 225372541. The reversal of 225372518 is 815273522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225372517) 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 7 ways as a sum of consecutive naturals, for example, 16871 + ... + 27117.

It is an arithmetic number, because the mean of its divisors is an integer number (24164784).

Almost surely, 2^225372518 is an apocalyptic number.

225372518 is a deficient number, since it is larger than the sum of its proper divisors (161264026).

225372518 is a wasteful number, since it uses less digits than its factorization.

225372518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11827.

The product of its digits is 33600, while the sum is 35.

The square root of 225372518 is about 15012.4121312999. The cubic root of 225372518 is about 608.5556781446. Note that the first 3 decimals are identical.

The spelling of 225372518 in words is "two hundred twenty-five million, three hundred seventy-two thousand, five hundred eighteen".