225206916 has 24 divisors (see below), whose sum is σ = 573254304. Its totient is φ = 68244480.

The previous prime is 225206887. The next prime is 225206921. The reversal of 225206916 is 619602522.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 852925 + ... + 853188.

It is an arithmetic number, because the mean of its divisors is an integer number (23885596).

Almost surely, 2^225206916 is an apocalyptic number.

It is an amenable number.

225206916 is an abundant number, since it is smaller than the sum of its proper divisors (348047388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225206916 is a wasteful number, since it uses less digits than its factorization.

225206916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706131 (or 1706129 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 225206916 is about 15006.8956150165. The cubic root of 225206916 is about 608.4065876048.

The spelling of 225206916 in words is "two hundred twenty-five million, two hundred six thousand, nine hundred sixteen".