225124666 has 16 divisors (see below), whose sum is σ = 375395328. Its totient is φ = 100551600.

The previous prime is 225124663. The next prime is 225124721. The reversal of 225124666 is 666421522.

225124666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×225124666² = 101362230483223112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225124663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138850 + ... + 140461.

It is an arithmetic number, because the mean of its divisors is an integer number (23462208).

Almost surely, 2^225124666 is an apocalyptic number.

225124666 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

225124666 is a deficient number, since it is larger than the sum of its proper divisors (150270662).

225124666 is a wasteful number, since it uses less digits than its factorization.

225124666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279357.

The product of its digits is 34560, while the sum is 34.

The square root of 225124666 is about 15004.1549578775. The cubic root of 225124666 is about 608.3325112309.

The spelling of 225124666 in words is "two hundred twenty-five million, one hundred twenty-four thousand, six hundred sixty-six".