225039600 has 240 divisors, whose sum is σ = 815543040. Its totient is φ = 58924800.

The previous prime is 225039599. The next prime is 225039649. The reversal of 225039600 is 6930522.

225039600 is a `hidden beast` number, since 2 + 2 + 50 + 3 + 9 + 600 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 723445 + ... + 723755.

It is an arithmetic number, because the mean of its divisors is an integer number (3398096).

Almost surely, 2^225039600 is an apocalyptic number.

225039600 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 225039600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (407771520).

225039600 is an abundant number, since it is smaller than the sum of its proper divisors (590503440).

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

225039600 is a wasteful number, since it uses less digits than its factorization.

225039600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 225039600 is about 15001.3199419251. The cubic root of 225039600 is about 608.2558797159.

The spelling of 225039600 in words is "two hundred twenty-five million, thirty-nine thousand, six hundred".