225451500 has 48 divisors (see below), whose sum is σ = 656519136. Its totient is φ = 60120000.

The previous prime is 225451477. The next prime is 225451553. The reversal of 225451500 is 5154522.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73651 + ... + 76650.

It is an arithmetic number, because the mean of its divisors is an integer number (13677482).

Almost surely, 2^225451500 is an apocalyptic number.

225451500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225451500 is an abundant number, since it is smaller than the sum of its proper divisors (431067636).

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

225451500 is a wasteful number, since it uses less digits than its factorization.

225451500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150323 (or 150311 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 225451500 is about 15015.0424574824. The cubic root of 225451500 is about 608.6267594686.

It can be divided in two parts, 225 and 451500, that added together give a triangular number (451725 = T₉₅₀).

The spelling of 225451500 in words is "two hundred twenty-five million, four hundred fifty-one thousand, five hundred".