225164012 has 6 divisors (see below), whose sum is σ = 394037028. Its totient is φ = 112582004.

The previous prime is 225164011. The next prime is 225164057. The reversal of 225164012 is 210461522.

It is a happy number.

It is a super-2 number, since 2×225164012² = 101397664599872288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225164011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28145498 + ... + 28145505.

It is an arithmetic number, because the mean of its divisors is an integer number (65672838).

Almost surely, 2^225164012 is an apocalyptic number.

It is an amenable number.

225164012 is a deficient number, since it is larger than the sum of its proper divisors (168873016).

225164012 is a wasteful number, since it uses less digits than its factorization.

225164012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56291007 (or 56291005 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 225164012 is about 15005.4660707357. The cubic root of 225164012 is about 608.3679494574.

The spelling of 225164012 in words is "two hundred twenty-five million, one hundred sixty-four thousand, twelve".