225429500 has 24 divisors (see below), whose sum is σ = 492339120. Its totient is φ = 90171600.

The previous prime is 225429487. The next prime is 225429517. The reversal of 225429500 is 5924522.

It is a congruent number.

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, 224930 + ... + 225929.

It is an arithmetic number, because the mean of its divisors is an integer number (20514130).

Almost surely, 2^225429500 is an apocalyptic number.

225429500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225429500 is an abundant number, since it is smaller than the sum of its proper divisors (266909620).

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

225429500 is a wasteful number, since it uses less digits than its factorization.

225429500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450878 (or 450866 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 225429500 is about 15014.3098409484. The cubic root of 225429500 is about 608.6069618265.

The spelling of 225429500 in words is "two hundred twenty-five million, four hundred twenty-nine thousand, five hundred".