225216610 has 32 divisors (see below), whose sum is σ = 427310640. Its totient is φ = 85333248.

The previous prime is 225216601. The next prime is 225216613. The reversal of 225216610 is 16612522.

It can be written as a sum of positive squares in 8 ways, for example, as 161264601 + 63952009 = 12699^2 + 7997^2 .

It is not an unprimeable number, because it can be changed into a prime (225216613) 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, 8044 + ... + 22696.

Almost surely, 2^225216610 is an apocalyptic number.

225216610 is a deficient number, since it is larger than the sum of its proper divisors (202094030).

225216610 is a wasteful number, since it uses less digits than its factorization.

225216610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14742.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 225216610 is about 15007.2185963955. The cubic root of 225216610 is about 608.4153170715.

The spelling of 225216610 in words is "two hundred twenty-five million, two hundred sixteen thousand, six hundred ten".