225371880 has 48 divisors (see below), whose sum is σ = 732459780. Its totient is φ = 60099072.

The previous prime is 225371869. The next prime is 225371893. The reversal of 225371880 is 88173522.

It can be written as a sum of positive squares in 2 ways, for example, as 225180036 + 191844 = 15006^2 + 438^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 312657 + ... + 313376.

Almost surely, 2^225371880 is an apocalyptic number.

225371880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225371880 is an abundant number, since it is smaller than the sum of its proper divisors (507087900).

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

225371880 is a wasteful number, since it uses less digits than its factorization.

225371880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626050 (or 626043 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 225371880 is about 15012.3908822013. The cubic root of 225371880 is about 608.5551038970. Note that the first 3 decimals are identical.

The spelling of 225371880 in words is "two hundred twenty-five million, three hundred seventy-one thousand, eight hundred eighty".