225455516 has 24 divisors (see below), whose sum is σ = 463525104. Its totient is φ = 94596480.

The previous prime is 225455509. The next prime is 225455521. The reversal of 225455516 is 615554522.

225455516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 196505 + ... + 197648.

It is an arithmetic number, because the mean of its divisors is an integer number (19313546).

Almost surely, 2^225455516 is an apocalyptic number.

225455516 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

225455516 is an abundant number, since it is smaller than the sum of its proper divisors (238069588).

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

225455516 is a wasteful number, since it uses less digits than its factorization.

225455516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394181 (or 394179 counting only the distinct ones).

The product of its digits is 60000, while the sum is 35.

The square root of 225455516 is about 15015.1761894425. The cubic root of 225455516 is about 608.6303732991.

The spelling of 225455516 in words is "two hundred twenty-five million, four hundred fifty-five thousand, five hundred sixteen".