225623481 has 8 divisors (see below), whose sum is σ = 301950720. Its totient is φ = 149855952.

The previous prime is 225623479. The next prime is 225623557. The reversal of 225623481 is 184326522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225623481 - 2¹ = 225623479 is a prime.

It is a super-2 number, since 2×225623481² = 101811910357114722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225623441) 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, 138985 + ... + 140598.

It is an arithmetic number, because the mean of its divisors is an integer number (37743840).

Almost surely, 2^225623481 is an apocalyptic number.

It is an amenable number.

225623481 is a deficient number, since it is larger than the sum of its proper divisors (76327239).

225623481 is a wasteful number, since it uses less digits than its factorization.

225623481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279855.

The product of its digits is 23040, while the sum is 33.

The square root of 225623481 is about 15020.7683225593. The cubic root of 225623481 is about 608.7814795662.

The spelling of 225623481 in words is "two hundred twenty-five million, six hundred twenty-three thousand, four hundred eighty-one".