225445628 has 12 divisors (see below), whose sum is σ = 394932552. Its totient is φ = 112607760.

The previous prime is 225445607. The next prime is 225445637. The reversal of 225445628 is 826544522.

225445628 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 225445591 and 225445600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24278 + ... + 32253.

It is an arithmetic number, because the mean of its divisors is an integer number (32911046).

Almost surely, 2^225445628 is an apocalyptic number.

It is an amenable number.

225445628 is a deficient number, since it is larger than the sum of its proper divisors (169486924).

225445628 is a wasteful number, since it uses less digits than its factorization.

225445628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57532 (or 57530 counting only the distinct ones).

The product of its digits is 153600, while the sum is 38.

The square root of 225445628 is about 15014.8469189666. The cubic root of 225445628 is about 608.6214754239.

The spelling of 225445628 in words is "two hundred twenty-five million, four hundred forty-five thousand, six hundred twenty-eight".