225351020 has 24 divisors (see below), whose sum is σ = 498145200. Its totient is φ = 85396032.

The previous prime is 225351017. The next prime is 225351023. The reversal of 225351020 is 20153522.

It is an interprime number because it is at equal distance from previous prime (225351017) and next prime (225351023).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 225350983 and 225351001.

It is not an unprimeable number, because it can be changed into a prime (225351023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296135 + ... + 296894.

It is an arithmetic number, because the mean of its divisors is an integer number (20756050).

Almost surely, 2^225351020 is an apocalyptic number.

225351020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225351020 is an abundant number, since it is smaller than the sum of its proper divisors (272794180).

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

225351020 is a wasteful number, since it uses less digits than its factorization.

225351020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593057 (or 593055 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 225351020 is about 15011.6961067029. The cubic root of 225351020 is about 608.5363277434.

The spelling of 225351020 in words is "two hundred twenty-five million, three hundred fifty-one thousand, twenty".