225645063 has 32 divisors (see below), whose sum is σ = 375828480. Its totient is φ = 117434880.

The previous prime is 225645061. The next prime is 225645071. The reversal of 225645063 is 360546522.

It is not a de Polignac number, because 225645063 - 2¹ = 225645061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225645061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 873 + ... + 21261.

It is an arithmetic number, because the mean of its divisors is an integer number (11744640).

Almost surely, 2^225645063 is an apocalyptic number.

225645063 is a deficient number, since it is larger than the sum of its proper divisors (150183417).

225645063 is a wasteful number, since it uses less digits than its factorization.

225645063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20447.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 225645063 is about 15021.4867107088. The cubic root of 225645063 is about 608.8008899322.

The spelling of 225645063 in words is "two hundred twenty-five million, six hundred forty-five thousand, sixty-three".