225103020 has 24 divisors (see below), whose sum is σ = 630288624. Its totient is φ = 60027456.

The previous prime is 225103009. The next prime is 225103033. The reversal of 225103020 is 20301522.

It is a super-2 number, since 2×225103020² = 101342739226240800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 1875799 + ... + 1875918.

It is an arithmetic number, because the mean of its divisors is an integer number (26262026).

Almost surely, 2^225103020 is an apocalyptic number.

225103020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225103020 is an abundant number, since it is smaller than the sum of its proper divisors (405185604).

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

225103020 is a wasteful number, since it uses less digits than its factorization.

225103020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3751729 (or 3751727 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 225103020 is about 15003.4336070114. The cubic root of 225103020 is about 608.3130133118.

Adding to 225103020 its reverse (20301522), we get a palindrome (245404542).

The spelling of 225103020 in words is "two hundred twenty-five million, one hundred three thousand, twenty".