225140020 has 96 divisors (see below), whose sum is σ = 563463936. Its totient is φ = 73958400.

The previous prime is 225140017. The next prime is 225140051. The reversal of 225140020 is 20041522.

It is a junction number, because it is equal to n+sod(n) for n = 225139976 and 225140003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 349819 + ... + 350461.

It is an arithmetic number, because the mean of its divisors is an integer number (5869416).

Almost surely, 2^225140020 is an apocalyptic number.

225140020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225140020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281731968).

225140020 is an abundant number, since it is smaller than the sum of its proper divisors (338323916).

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

225140020 is a wasteful number, since it uses less digits than its factorization.

225140020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761 (or 759 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 225140020 is about 15004.6666074258. Note that the first 4 decimals coincide. The cubic root of 225140020 is about 608.3463407907.

Adding to 225140020 its reverse (20041522), we get a palindrome (245181542).

The spelling of 225140020 in words is "two hundred twenty-five million, one hundred forty thousand, twenty".