225215463 has 16 divisors (see below), whose sum is σ = 328035456. Its totient is φ = 136307040.

The previous prime is 225215461. The next prime is 225215483. The reversal of 225215463 is 364512522.

It is not a de Polignac number, because 225215463 - 2¹ = 225215461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225215463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225215461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22020 + ... + 30582.

It is an arithmetic number, because the mean of its divisors is an integer number (20502216).

Almost surely, 2^225215463 is an apocalyptic number.

225215463 is a deficient number, since it is larger than the sum of its proper divisors (102819993).

225215463 is a wasteful number, since it uses less digits than its factorization.

225215463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9374.

The product of its digits is 14400, while the sum is 30.

The square root of 225215463 is about 15007.1803814041. The cubic root of 225215463 is about 608.4142842087.

Adding to 225215463 its reverse (364512522), we get a palindrome (589727985).

The spelling of 225215463 in words is "two hundred twenty-five million, two hundred fifteen thousand, four hundred sixty-three".