225721425300 has 432 divisors, whose sum is σ = 830379852288. Its totient is φ = 46990540800.

The previous prime is 225721425277. The next prime is 225721425337. The reversal of 225721425300 is 3524127522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 7732332 + ... + 7761468.

It is an arithmetic number, because the mean of its divisors is an integer number (1922175584).

Almost surely, 2^225721425300 is an apocalyptic number.

225721425300 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 225721425300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (415189926144).

225721425300 is an abundant number, since it is smaller than the sum of its proper divisors (604658426988).

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

225721425300 is a wasteful number, since it uses less digits than its factorization.

225721425300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29216 (or 29202 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The spelling of 225721425300 in words is "two hundred twenty-five billion, seven hundred twenty-one million, four hundred twenty-five thousand, three hundred".